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Finding the Fourth Proportional to 243,020.79, 335,360.86 and 132,635.21

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Solution

The fourth proportional to 243,020.79, 335,360.86 and 132,635.21 is: 183,032.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,020.79 : 335,360.86 = 132,635.21 : x
  2. Step 2: Convert to fraction form
    243,020.79/335,360.86 = 132,635.21/x
  3. Step 3: Cross multiply
    243,020.79x = 335,360.86 × 132,635.21
  4. Step 4: Simplify right side
    243,020.79x = 44,480,656,083.49
  5. Step 5: Solve for x
    x = 44,480,656,083.49/243,020.79
  6. Step 6: Final answer
    x = 183,032.31

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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.