Home / 238,715.73-329,421.13-131,285.75

Finding the Fourth Proportional to 238,715.73, 329,421.13 and 131,285.75

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Solution

The fourth proportional to 238,715.73, 329,421.13 and 131,285.75 is: 181,170.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,715.73 : 329,421.13 = 131,285.75 : x
  2. Step 2: Convert to fraction form
    238,715.73/329,421.13 = 131,285.75/x
  3. Step 3: Cross multiply
    238,715.73x = 329,421.13 × 131,285.75
  4. Step 4: Simplify right side
    238,715.73x = 43,248,300,117.90
  5. Step 5: Solve for x
    x = 43,248,300,117.90/238,715.73
  6. Step 6: Final answer
    x = 181,170.72

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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.