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Finding the Fourth Proportional to 253,871.47, 380,406.66 and 93,727.18

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Solution

The fourth proportional to 253,871.47, 380,406.66 and 93,727.18 is: 140,442.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,871.47 : 380,406.66 = 93,727.18 : x
  2. Step 2: Convert to fraction form
    253,871.47/380,406.66 = 93,727.18/x
  3. Step 3: Cross multiply
    253,871.47x = 380,406.66 × 93,727.18
  4. Step 4: Simplify right side
    253,871.47x = 35,654,443,495.02
  5. Step 5: Solve for x
    x = 35,654,443,495.02/253,871.47
  6. Step 6: Final answer
    x = 140,442.89

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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.