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Finding the Fourth Proportional to 252,687.57, 348,699.68 and 137,964.10

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Solution

The fourth proportional to 252,687.57, 348,699.68 and 137,964.10 is: 190,385.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,687.57 : 348,699.68 = 137,964.10 : x
  2. Step 2: Convert to fraction form
    252,687.57/348,699.68 = 137,964.10/x
  3. Step 3: Cross multiply
    252,687.57x = 348,699.68 × 137,964.10
  4. Step 4: Simplify right side
    252,687.57x = 48,108,037,521.49
  5. Step 5: Solve for x
    x = 48,108,037,521.49/252,687.57
  6. Step 6: Final answer
    x = 190,385.45

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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.