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Finding the Fourth Proportional to 243,278.57, 365,048.71 and 101,221.88

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Solution

The fourth proportional to 243,278.57, 365,048.71 and 101,221.88 is: 151,887.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,278.57 : 365,048.71 = 101,221.88 : x
  2. Step 2: Convert to fraction form
    243,278.57/365,048.71 = 101,221.88/x
  3. Step 3: Cross multiply
    243,278.57x = 365,048.71 × 101,221.88
  4. Step 4: Simplify right side
    243,278.57x = 36,950,914,639.48
  5. Step 5: Solve for x
    x = 36,950,914,639.48/243,278.57
  6. Step 6: Final answer
    x = 151,887.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.