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Finding the Fourth Proportional to 308,528.38, 425,766.01 and 172,562.00

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Solution

The fourth proportional to 308,528.38, 425,766.01 and 172,562.00 is: 238,133.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,528.38 : 425,766.01 = 172,562.00 : x
  2. Step 2: Convert to fraction form
    308,528.38/425,766.01 = 172,562.00/x
  3. Step 3: Cross multiply
    308,528.38x = 425,766.01 × 172,562.00
  4. Step 4: Simplify right side
    308,528.38x = 73,471,031,225.98
  5. Step 5: Solve for x
    x = 73,471,031,225.98/308,528.38
  6. Step 6: Final answer
    x = 238,133.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.