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Finding the Fourth Proportional to 238,782.71, 329,513.13 and 131,352.68

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Solution

The fourth proportional to 238,782.71, 329,513.13 and 131,352.68 is: 181,262.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,782.71 : 329,513.13 = 131,352.68 : x
  2. Step 2: Convert to fraction form
    238,782.71/329,513.13 = 131,352.68/x
  3. Step 3: Cross multiply
    238,782.71x = 329,513.13 × 131,352.68
  4. Step 4: Simplify right side
    238,782.71x = 43,282,431,073.12
  5. Step 5: Solve for x
    x = 43,282,431,073.12/238,782.71
  6. Step 6: Final answer
    x = 181,262.84

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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.