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Finding the Fourth Proportional to 243,377.54, 365,100.87 and 74,911.89

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Solution

The fourth proportional to 243,377.54, 365,100.87 and 74,911.89 is: 112,378.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,377.54 : 365,100.87 = 74,911.89 : x
  2. Step 2: Convert to fraction form
    243,377.54/365,100.87 = 74,911.89/x
  3. Step 3: Cross multiply
    243,377.54x = 365,100.87 × 74,911.89
  4. Step 4: Simplify right side
    243,377.54x = 27,350,395,387.32
  5. Step 5: Solve for x
    x = 27,350,395,387.32/243,377.54
  6. Step 6: Final answer
    x = 112,378.47

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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.