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Finding the Fourth Proportional to 499,359.40, 749,039.10 and 166,892.20

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Solution

The fourth proportional to 499,359.40, 749,039.10 and 166,892.20 is: 250,338.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,359.40 : 749,039.10 = 166,892.20 : x
  2. Step 2: Convert to fraction form
    499,359.40/749,039.10 = 166,892.20/x
  3. Step 3: Cross multiply
    499,359.40x = 749,039.10 × 166,892.20
  4. Step 4: Simplify right side
    499,359.40x = 125,008,783,285.02
  5. Step 5: Solve for x
    x = 125,008,783,285.02/499,359.40
  6. Step 6: Final answer
    x = 250,338.30

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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.