Home / 222,979.20-307,711.49-127,487.89

Finding the Fourth Proportional to 222,979.20, 307,711.49 and 127,487.89

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Solution

The fourth proportional to 222,979.20, 307,711.49 and 127,487.89 is: 175,933.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,979.20 : 307,711.49 = 127,487.89 : x
  2. Step 2: Convert to fraction form
    222,979.20/307,711.49 = 127,487.89/x
  3. Step 3: Cross multiply
    222,979.20x = 307,711.49 × 127,487.89
  4. Step 4: Simplify right side
    222,979.20x = 39,229,488,588.86
  5. Step 5: Solve for x
    x = 39,229,488,588.86/222,979.20
  6. Step 6: Final answer
    x = 175,933.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.