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Finding the Fourth Proportional to 559,426.60, 839,139.90 and 185,449.60

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Solution

The fourth proportional to 559,426.60, 839,139.90 and 185,449.60 is: 278,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,426.60 : 839,139.90 = 185,449.60 : x
  2. Step 2: Convert to fraction form
    559,426.60/839,139.90 = 185,449.60/x
  3. Step 3: Cross multiply
    559,426.60x = 839,139.90 × 185,449.60
  4. Step 4: Simplify right side
    559,426.60x = 155,618,158,799.04
  5. Step 5: Solve for x
    x = 155,618,158,799.04/559,426.60
  6. Step 6: Final answer
    x = 278,174.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.