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Finding the Fourth Proportional to 238,321.49, 328,885.92 and 130,893.75

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Solution

The fourth proportional to 238,321.49, 328,885.92 and 130,893.75 is: 180,634.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,321.49 : 328,885.92 = 130,893.75 : x
  2. Step 2: Convert to fraction form
    238,321.49/328,885.92 = 130,893.75/x
  3. Step 3: Cross multiply
    238,321.49x = 328,885.92 × 130,893.75
  4. Step 4: Simplify right side
    238,321.49x = 43,049,111,391
  5. Step 5: Solve for x
    x = 43,049,111,391/238,321.49
  6. Step 6: Final answer
    x = 180,634.62

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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.