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Finding the Fourth Proportional to 228,487.38, 315,324.30 and 126,523.98

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Solution

The fourth proportional to 228,487.38, 315,324.30 and 126,523.98 is: 174,609.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,487.38 : 315,324.30 = 126,523.98 : x
  2. Step 2: Convert to fraction form
    228,487.38/315,324.30 = 126,523.98/x
  3. Step 3: Cross multiply
    228,487.38x = 315,324.30 × 126,523.98
  4. Step 4: Simplify right side
    228,487.38x = 39,896,085,426.71
  5. Step 5: Solve for x
    x = 39,896,085,426.71/228,487.38
  6. Step 6: Final answer
    x = 174,609.58

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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.