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Finding the Fourth Proportional to 502,459.65, 753,265.72 and 217,935.90

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Solution

The fourth proportional to 502,459.65, 753,265.72 and 217,935.90 is: 326,720.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,459.65 : 753,265.72 = 217,935.90 : x
  2. Step 2: Convert to fraction form
    502,459.65/753,265.72 = 217,935.90/x
  3. Step 3: Cross multiply
    502,459.65x = 753,265.72 × 217,935.90
  4. Step 4: Simplify right side
    502,459.65x = 164,163,642,627.35
  5. Step 5: Solve for x
    x = 164,163,642,627.35/502,459.65
  6. Step 6: Final answer
    x = 326,720.05

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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.