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Finding the Fourth Proportional to 238,850.16, 329,621.16 and 131,428.08

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Solution

The fourth proportional to 238,850.16, 329,621.16 and 131,428.08 is: 181,375.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,850.16 : 329,621.16 = 131,428.08 : x
  2. Step 2: Convert to fraction form
    238,850.16/329,621.16 = 131,428.08/x
  3. Step 3: Cross multiply
    238,850.16x = 329,621.16 × 131,428.08
  4. Step 4: Simplify right side
    238,850.16x = 43,321,476,186.17
  5. Step 5: Solve for x
    x = 43,321,476,186.17/238,850.16
  6. Step 6: Final answer
    x = 181,375.12

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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.