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Finding the Fourth Proportional to 247,785.69, 371,663.49 and 87,869.53

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Solution

The fourth proportional to 247,785.69, 371,663.49 and 87,869.53 is: 131,798.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,785.69 : 371,663.49 = 87,869.53 : x
  2. Step 2: Convert to fraction form
    247,785.69/371,663.49 = 87,869.53/x
  3. Step 3: Cross multiply
    247,785.69x = 371,663.49 × 87,869.53
  4. Step 4: Simplify right side
    247,785.69x = 32,657,896,184.46
  5. Step 5: Solve for x
    x = 32,657,896,184.46/247,785.69
  6. Step 6: Final answer
    x = 131,798.96

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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.