Home / 238,895.17-358,375.70-81,081.25

Finding the Fourth Proportional to 238,895.17, 358,375.70 and 81,081.25

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Solution

The fourth proportional to 238,895.17, 358,375.70 and 81,081.25 is: 121,633.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,895.17 : 358,375.70 = 81,081.25 : x
  2. Step 2: Convert to fraction form
    238,895.17/358,375.70 = 81,081.25/x
  3. Step 3: Cross multiply
    238,895.17x = 358,375.70 × 81,081.25
  4. Step 4: Simplify right side
    238,895.17x = 29,057,549,320.22
  5. Step 5: Solve for x
    x = 29,057,549,320.22/238,895.17
  6. Step 6: Final answer
    x = 121,633.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.