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Finding the Fourth Proportional to 243,376.96, 335,767.84 and 158,566.72

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Solution

The fourth proportional to 243,376.96, 335,767.84 and 158,566.72 is: 218,761.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,376.96 : 335,767.84 = 158,566.72 : x
  2. Step 2: Convert to fraction form
    243,376.96/335,767.84 = 158,566.72/x
  3. Step 3: Cross multiply
    243,376.96x = 335,767.84 × 158,566.72
  4. Step 4: Simplify right side
    243,376.96x = 53,241,605,070.28
  5. Step 5: Solve for x
    x = 53,241,605,070.28/243,376.96
  6. Step 6: Final answer
    x = 218,761.90

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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.