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Finding the Fourth Proportional to 185,234.40, 277,657.20 and 72,871.20

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Solution

The fourth proportional to 185,234.40, 277,657.20 and 72,871.20 is: 109,230.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,234.40 : 277,657.20 = 72,871.20 : x
  2. Step 2: Convert to fraction form
    185,234.40/277,657.20 = 72,871.20/x
  3. Step 3: Cross multiply
    185,234.40x = 277,657.20 × 72,871.20
  4. Step 4: Simplify right side
    185,234.40x = 20,233,213,352.64
  5. Step 5: Solve for x
    x = 20,233,213,352.64/185,234.40
  6. Step 6: Final answer
    x = 109,230.32

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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.