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Finding the Fourth Proportional to 456,233.20, 684,349.80 and 123,809.20

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Solution

The fourth proportional to 456,233.20, 684,349.80 and 123,809.20 is: 185,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,233.20 : 684,349.80 = 123,809.20 : x
  2. Step 2: Convert to fraction form
    456,233.20/684,349.80 = 123,809.20/x
  3. Step 3: Cross multiply
    456,233.20x = 684,349.80 × 123,809.20
  4. Step 4: Simplify right side
    456,233.20x = 84,728,801,258.16
  5. Step 5: Solve for x
    x = 84,728,801,258.16/456,233.20
  6. Step 6: Final answer
    x = 185,713.80

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Similar ratio
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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.