Home / 218,248.78-301,182.14-122,753.42

Finding the Fourth Proportional to 218,248.78, 301,182.14 and 122,753.42

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Solution

The fourth proportional to 218,248.78, 301,182.14 and 122,753.42 is: 169,399.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,248.78 : 301,182.14 = 122,753.42 : x
  2. Step 2: Convert to fraction form
    218,248.78/301,182.14 = 122,753.42/x
  3. Step 3: Cross multiply
    218,248.78x = 301,182.14 × 122,753.42
  4. Step 4: Simplify right side
    218,248.78x = 36,971,137,727.92
  5. Step 5: Solve for x
    x = 36,971,137,727.92/218,248.78
  6. Step 6: Final answer
    x = 169,399.06

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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.