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Finding the Fourth Proportional to 238,557.84, 329,209.92 and 131,127

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Solution

The fourth proportional to 238,557.84, 329,209.92 and 131,127 is: 180,955.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,557.84 : 329,209.92 = 131,127 : x
  2. Step 2: Convert to fraction form
    238,557.84/329,209.92 = 131,127/x
  3. Step 3: Cross multiply
    238,557.84x = 329,209.92 × 131,127
  4. Step 4: Simplify right side
    238,557.84x = 43,168,309,179.84
  5. Step 5: Solve for x
    x = 43,168,309,179.84/238,557.84
  6. Step 6: Final answer
    x = 180,955.32

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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.