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Finding the Fourth Proportional to 531,465.30, 797,246.55 and 215,856.90

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Solution

The fourth proportional to 531,465.30, 797,246.55 and 215,856.90 is: 323,805.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,465.30 : 797,246.55 = 215,856.90 : x
  2. Step 2: Convert to fraction form
    531,465.30/797,246.55 = 215,856.90/x
  3. Step 3: Cross multiply
    531,465.30x = 797,246.55 × 215,856.90
  4. Step 4: Simplify right side
    531,465.30x = 172,091,168,818.70
  5. Step 5: Solve for x
    x = 172,091,168,818.70/531,465.30
  6. Step 6: Final answer
    x = 323,805.09

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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.