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Finding the Fourth Proportional to 243,184.82, 335,628.79 and 135,761.81

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Solution

The fourth proportional to 243,184.82, 335,628.79 and 135,761.81 is: 187,370.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,184.82 : 335,628.79 = 135,761.81 : x
  2. Step 2: Convert to fraction form
    243,184.82/335,628.79 = 135,761.81/x
  3. Step 3: Cross multiply
    243,184.82x = 335,628.79 × 135,761.81
  4. Step 4: Simplify right side
    243,184.82x = 45,565,572,518.18
  5. Step 5: Solve for x
    x = 45,565,572,518.18/243,184.82
  6. Step 6: Final answer
    x = 187,370.13

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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.