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Finding the Fourth Proportional to 247,770.28, 371,655.42 and 107,528.90

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Solution

The fourth proportional to 247,770.28, 371,655.42 and 107,528.90 is: 161,293.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,770.28 : 371,655.42 = 107,528.90 : x
  2. Step 2: Convert to fraction form
    247,770.28/371,655.42 = 107,528.90/x
  3. Step 3: Cross multiply
    247,770.28x = 371,655.42 × 107,528.90
  4. Step 4: Simplify right side
    247,770.28x = 39,963,698,491.64
  5. Step 5: Solve for x
    x = 39,963,698,491.64/247,770.28
  6. Step 6: Final answer
    x = 161,293.35

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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.