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Finding the Fourth Proportional to 243,166.48, 335,562.76 and 135,734.22

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Solution

The fourth proportional to 243,166.48, 335,562.76 and 135,734.22 is: 187,309.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,166.48 : 335,562.76 = 135,734.22 : x
  2. Step 2: Convert to fraction form
    243,166.48/335,562.76 = 135,734.22/x
  3. Step 3: Cross multiply
    243,166.48x = 335,562.76 × 135,734.22
  4. Step 4: Simplify right side
    243,166.48x = 45,547,349,489.65
  5. Step 5: Solve for x
    x = 45,547,349,489.65/243,166.48
  6. Step 6: Final answer
    x = 187,309.33

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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.