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Finding the Fourth Proportional to 238,594.80, 329,248.15 and 131,144.15

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Solution

The fourth proportional to 238,594.80, 329,248.15 and 131,144.15 is: 180,971.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,594.80 : 329,248.15 = 131,144.15 : x
  2. Step 2: Convert to fraction form
    238,594.80/329,248.15 = 131,144.15/x
  3. Step 3: Cross multiply
    238,594.80x = 329,248.15 × 131,144.15
  4. Step 4: Simplify right side
    238,594.80x = 43,178,968,770.82
  5. Step 5: Solve for x
    x = 43,178,968,770.82/238,594.80
  6. Step 6: Final answer
    x = 180,971.96

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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.