Home / 200,972.97-301,461.06-72,979.74

Finding the Fourth Proportional to 200,972.97, 301,461.06 and 72,979.74

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Solution

The fourth proportional to 200,972.97, 301,461.06 and 72,979.74 is: 109,470.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,972.97 : 301,461.06 = 72,979.74 : x
  2. Step 2: Convert to fraction form
    200,972.97/301,461.06 = 72,979.74/x
  3. Step 3: Cross multiply
    200,972.97x = 301,461.06 × 72,979.74
  4. Step 4: Simplify right side
    200,972.97x = 22,000,549,778.92
  5. Step 5: Solve for x
    x = 22,000,549,778.92/200,972.97
  6. Step 6: Final answer
    x = 109,470.19

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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.