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Finding the Fourth Proportional to 238,922.74, 329,706.74 and 135,575.76

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Solution

The fourth proportional to 238,922.74, 329,706.74 and 135,575.76 is: 187,090.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,922.74 : 329,706.74 = 135,575.76 : x
  2. Step 2: Convert to fraction form
    238,922.74/329,706.74 = 135,575.76/x
  3. Step 3: Cross multiply
    238,922.74x = 329,706.74 × 135,575.76
  4. Step 4: Simplify right side
    238,922.74x = 44,700,241,852.62
  5. Step 5: Solve for x
    x = 44,700,241,852.62/238,922.74
  6. Step 6: Final answer
    x = 187,090.78

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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.