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Finding the Fourth Proportional to 478,253.32, 717,423.90 and 123,268.60

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Solution

The fourth proportional to 478,253.32, 717,423.90 and 123,268.60 is: 184,914.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,253.32 : 717,423.90 = 123,268.60 : x
  2. Step 2: Convert to fraction form
    478,253.32/717,423.90 = 123,268.60/x
  3. Step 3: Cross multiply
    478,253.32x = 717,423.90 × 123,268.60
  4. Step 4: Simplify right side
    478,253.32x = 88,435,839,759.54
  5. Step 5: Solve for x
    x = 88,435,839,759.54/478,253.32
  6. Step 6: Final answer
    x = 184,914.22

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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.