Home / 239,380.29-330,252.11-137,368.89

Finding the Fourth Proportional to 239,380.29, 330,252.11 and 137,368.89

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Solution

The fourth proportional to 239,380.29, 330,252.11 and 137,368.89 is: 189,515.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,380.29 : 330,252.11 = 137,368.89 : x
  2. Step 2: Convert to fraction form
    239,380.29/330,252.11 = 137,368.89/x
  3. Step 3: Cross multiply
    239,380.29x = 330,252.11 × 137,368.89
  4. Step 4: Simplify right side
    239,380.29x = 45,366,365,770.86
  5. Step 5: Solve for x
    x = 45,366,365,770.86/239,380.29
  6. Step 6: Final answer
    x = 189,515.88

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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.