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Finding the Fourth Proportional to 247,403.10, 371,104.65 and 147,675.90

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Solution

The fourth proportional to 247,403.10, 371,104.65 and 147,675.90 is: 221,513.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,403.10 : 371,104.65 = 147,675.90 : x
  2. Step 2: Convert to fraction form
    247,403.10/371,104.65 = 147,675.90/x
  3. Step 3: Cross multiply
    247,403.10x = 371,104.65 × 147,675.90
  4. Step 4: Simplify right side
    247,403.10x = 54,803,213,182.94
  5. Step 5: Solve for x
    x = 54,803,213,182.94/247,403.10
  6. Step 6: Final answer
    x = 221,513.85

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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.