Home / 218,729.96-301,836.18-123,242.30

Finding the Fourth Proportional to 218,729.96, 301,836.18 and 123,242.30

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Solution

The fourth proportional to 218,729.96, 301,836.18 and 123,242.30 is: 170,068.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,729.96 : 301,836.18 = 123,242.30 : x
  2. Step 2: Convert to fraction form
    218,729.96/301,836.18 = 123,242.30/x
  3. Step 3: Cross multiply
    218,729.96x = 301,836.18 × 123,242.30
  4. Step 4: Simplify right side
    218,729.96x = 37,198,985,046.41
  5. Step 5: Solve for x
    x = 37,198,985,046.41/218,729.96
  6. Step 6: Final answer
    x = 170,068.08

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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.