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Finding the Fourth Proportional to 238,347.03, 328,921.27 and 129,453.49

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Solution

The fourth proportional to 238,347.03, 328,921.27 and 129,453.49 is: 178,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,347.03 : 328,921.27 = 129,453.49 : x
  2. Step 2: Convert to fraction form
    238,347.03/328,921.27 = 129,453.49/x
  3. Step 3: Cross multiply
    238,347.03x = 328,921.27 × 129,453.49
  4. Step 4: Simplify right side
    238,347.03x = 42,580,006,336.73
  5. Step 5: Solve for x
    x = 42,580,006,336.73/238,347.03
  6. Step 6: Final answer
    x = 178,647.10

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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.