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Finding the Fourth Proportional to 253,387.32, 380,034.40 and 93,428.52

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Solution

The fourth proportional to 253,387.32, 380,034.40 and 93,428.52 is: 140,125.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,387.32 : 380,034.40 = 93,428.52 : x
  2. Step 2: Convert to fraction form
    253,387.32/380,034.40 = 93,428.52/x
  3. Step 3: Cross multiply
    253,387.32x = 380,034.40 × 93,428.52
  4. Step 4: Simplify right side
    253,387.32x = 35,506,051,541.09
  5. Step 5: Solve for x
    x = 35,506,051,541.09/253,387.32
  6. Step 6: Final answer
    x = 140,125.61

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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.