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Finding the Fourth Proportional to 238,765.74, 329,495.08 and 135,419.59

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Solution

The fourth proportional to 238,765.74, 329,495.08 and 135,419.59 is: 186,878.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,765.74 : 329,495.08 = 135,419.59 : x
  2. Step 2: Convert to fraction form
    238,765.74/329,495.08 = 135,419.59/x
  3. Step 3: Cross multiply
    238,765.74x = 329,495.08 × 135,419.59
  4. Step 4: Simplify right side
    238,765.74x = 44,620,088,640.62
  5. Step 5: Solve for x
    x = 44,620,088,640.62/238,765.74
  6. Step 6: Final answer
    x = 186,878.10

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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.