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Finding the Fourth Proportional to 531,354.72, 797,156.63 and 211,526.13

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Solution

The fourth proportional to 531,354.72, 797,156.63 and 211,526.13 is: 317,338.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,354.72 : 797,156.63 = 211,526.13 : x
  2. Step 2: Convert to fraction form
    531,354.72/797,156.63 = 211,526.13/x
  3. Step 3: Cross multiply
    531,354.72x = 797,156.63 × 211,526.13
  4. Step 4: Simplify right side
    531,354.72x = 168,619,456,947.74
  5. Step 5: Solve for x
    x = 168,619,456,947.74/531,354.72
  6. Step 6: Final answer
    x = 317,338.78

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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.