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Finding the Fourth Proportional to 247,708.67, 371,467.94 and 105,463.76

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Solution

The fourth proportional to 247,708.67, 371,467.94 and 105,463.76 is: 158,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,708.67 : 371,467.94 = 105,463.76 : x
  2. Step 2: Convert to fraction form
    247,708.67/371,467.94 = 105,463.76/x
  3. Step 3: Cross multiply
    247,708.67x = 371,467.94 × 105,463.76
  4. Step 4: Simplify right side
    247,708.67x = 39,176,406,073.21
  5. Step 5: Solve for x
    x = 39,176,406,073.21/247,708.67
  6. Step 6: Final answer
    x = 158,155.17

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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.