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Finding the Fourth Proportional to 252,691.85, 348,705.57 and 137,968.38

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Solution

The fourth proportional to 252,691.85, 348,705.57 and 137,968.38 is: 190,391.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,691.85 : 348,705.57 = 137,968.38 : x
  2. Step 2: Convert to fraction form
    252,691.85/348,705.57 = 137,968.38/x
  3. Step 3: Cross multiply
    252,691.85x = 348,705.57 × 137,968.38
  4. Step 4: Simplify right side
    252,691.85x = 48,110,343,107.26
  5. Step 5: Solve for x
    x = 48,110,343,107.26/252,691.85
  6. Step 6: Final answer
    x = 190,391.35

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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.