Home / 238,818.79-329,566.29-131,382.40

Finding the Fourth Proportional to 238,818.79, 329,566.29 and 131,382.40

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Solution

The fourth proportional to 238,818.79, 329,566.29 and 131,382.40 is: 181,305.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,818.79 : 329,566.29 = 131,382.40 : x
  2. Step 2: Convert to fraction form
    238,818.79/329,566.29 = 131,382.40/x
  3. Step 3: Cross multiply
    238,818.79x = 329,566.29 × 131,382.40
  4. Step 4: Simplify right side
    238,818.79x = 43,299,210,139.30
  5. Step 5: Solve for x
    x = 43,299,210,139.30/238,818.79
  6. Step 6: Final answer
    x = 181,305.71

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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.