Home / 238,543.13-329,192.03-129,647.45

Finding the Fourth Proportional to 238,543.13, 329,192.03 and 129,647.45

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Solution

The fourth proportional to 238,543.13, 329,192.03 and 129,647.45 is: 178,914.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,543.13 : 329,192.03 = 129,647.45 : x
  2. Step 2: Convert to fraction form
    238,543.13/329,192.03 = 129,647.45/x
  3. Step 3: Cross multiply
    238,543.13x = 329,192.03 × 129,647.45
  4. Step 4: Simplify right side
    238,543.13x = 42,678,908,396.92
  5. Step 5: Solve for x
    x = 42,678,908,396.92/238,543.13
  6. Step 6: Final answer
    x = 178,914.85

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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.