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Finding the Fourth Proportional to 243,042.74, 335,417.81 and 134,168.42

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Solution

The fourth proportional to 243,042.74, 335,417.81 and 134,168.42 is: 185,162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,042.74 : 335,417.81 = 134,168.42 : x
  2. Step 2: Convert to fraction form
    243,042.74/335,417.81 = 134,168.42/x
  3. Step 3: Cross multiply
    243,042.74x = 335,417.81 × 134,168.42
  4. Step 4: Simplify right side
    243,042.74x = 45,002,475,259.63
  5. Step 5: Solve for x
    x = 45,002,475,259.63/243,042.74
  6. Step 6: Final answer
    x = 185,162.80

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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.