Home / 207,185.52-310,778.28-137,048.43

Finding the Fourth Proportional to 207,185.52, 310,778.28 and 137,048.43

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Solution

The fourth proportional to 207,185.52, 310,778.28 and 137,048.43 is: 205,572.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,185.52 : 310,778.28 = 137,048.43 : x
  2. Step 2: Convert to fraction form
    207,185.52/310,778.28 = 137,048.43/x
  3. Step 3: Cross multiply
    207,185.52x = 310,778.28 × 137,048.43
  4. Step 4: Simplify right side
    207,185.52x = 42,591,675,352.10
  5. Step 5: Solve for x
    x = 42,591,675,352.10/207,185.52
  6. Step 6: Final answer
    x = 205,572.65

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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.