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Finding the Fourth Proportional to 238,725, 329,443.23 and 131,296.80

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Solution

The fourth proportional to 238,725, 329,443.23 and 131,296.80 is: 181,191.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,725 : 329,443.23 = 131,296.80 : x
  2. Step 2: Convert to fraction form
    238,725/329,443.23 = 131,296.80/x
  3. Step 3: Cross multiply
    238,725x = 329,443.23 × 131,296.80
  4. Step 4: Simplify right side
    238,725x = 43,254,841,880.66
  5. Step 5: Solve for x
    x = 43,254,841,880.66/238,725
  6. Step 6: Final answer
    x = 181,191.09

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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.