Home / 238,431.36-329,035.68-131,000.40

Finding the Fourth Proportional to 238,431.36, 329,035.68 and 131,000.40

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Solution

The fourth proportional to 238,431.36, 329,035.68 and 131,000.40 is: 180,780.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,431.36 : 329,035.68 = 131,000.40 : x
  2. Step 2: Convert to fraction form
    238,431.36/329,035.68 = 131,000.40/x
  3. Step 3: Cross multiply
    238,431.36x = 329,035.68 × 131,000.40
  4. Step 4: Simplify right side
    238,431.36x = 43,103,805,694.27
  5. Step 5: Solve for x
    x = 43,103,805,694.27/238,431.36
  6. Step 6: Final answer
    x = 180,780.77

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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.