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Finding the Fourth Proportional to 559,811.80, 839,180.10 and 185,642.20

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Solution

The fourth proportional to 559,811.80, 839,180.10 and 185,642.20 is: 278,285.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,811.80 : 839,180.10 = 185,642.20 : x
  2. Step 2: Convert to fraction form
    559,811.80/839,180.10 = 185,642.20/x
  3. Step 3: Cross multiply
    559,811.80x = 839,180.10 × 185,642.20
  4. Step 4: Simplify right side
    559,811.80x = 155,787,239,960.22
  5. Step 5: Solve for x
    x = 155,787,239,960.22/559,811.80
  6. Step 6: Final answer
    x = 278,285.02

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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.