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Finding the Fourth Proportional to 247,654.28, 341,764.38 and 145,683.92

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Solution

The fourth proportional to 247,654.28, 341,764.38 and 145,683.92 is: 201,044.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,654.28 : 341,764.38 = 145,683.92 : x
  2. Step 2: Convert to fraction form
    247,654.28/341,764.38 = 145,683.92/x
  3. Step 3: Cross multiply
    247,654.28x = 341,764.38 × 145,683.92
  4. Step 4: Simplify right side
    247,654.28x = 49,789,572,885.95
  5. Step 5: Solve for x
    x = 49,789,572,885.95/247,654.28
  6. Step 6: Final answer
    x = 201,044.67

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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.