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Finding the Fourth Proportional to 243,953.87, 365,787.03 and 113,978.92

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Solution

The fourth proportional to 243,953.87, 365,787.03 and 113,978.92 is: 170,901.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,953.87 : 365,787.03 = 113,978.92 : x
  2. Step 2: Convert to fraction form
    243,953.87/365,787.03 = 113,978.92/x
  3. Step 3: Cross multiply
    243,953.87x = 365,787.03 × 113,978.92
  4. Step 4: Simplify right side
    243,953.87x = 41,692,011,055.57
  5. Step 5: Solve for x
    x = 41,692,011,055.57/243,953.87
  6. Step 6: Final answer
    x = 170,901.21

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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.