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Finding the Fourth Proportional to 243,171.04, 335,570.42 and 135,751

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Solution

The fourth proportional to 243,171.04, 335,570.42 and 135,751 is: 187,333.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,171.04 : 335,570.42 = 135,751 : x
  2. Step 2: Convert to fraction form
    243,171.04/335,570.42 = 135,751/x
  3. Step 3: Cross multiply
    243,171.04x = 335,570.42 × 135,751
  4. Step 4: Simplify right side
    243,171.04x = 45,554,020,085.42
  5. Step 5: Solve for x
    x = 45,554,020,085.42/243,171.04
  6. Step 6: Final answer
    x = 187,333.25

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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.