Home / 205,221.40-307,832.10-72,251.80

Finding the Fourth Proportional to 205,221.40, 307,832.10 and 72,251.80

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Solution

The fourth proportional to 205,221.40, 307,832.10 and 72,251.80 is: 108,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,221.40 : 307,832.10 = 72,251.80 : x
  2. Step 2: Convert to fraction form
    205,221.40/307,832.10 = 72,251.80/x
  3. Step 3: Cross multiply
    205,221.40x = 307,832.10 × 72,251.80
  4. Step 4: Simplify right side
    205,221.40x = 22,241,423,322.78
  5. Step 5: Solve for x
    x = 22,241,423,322.78/205,221.40
  6. Step 6: Final answer
    x = 108,377.70

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1.5x scale

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.