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Finding the Fourth Proportional to 247,311.55, 370,718.10 and 97,493.85

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Solution

The fourth proportional to 247,311.55, 370,718.10 and 97,493.85 is: 146,142.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,311.55 : 370,718.10 = 97,493.85 : x
  2. Step 2: Convert to fraction form
    247,311.55/370,718.10 = 97,493.85/x
  3. Step 3: Cross multiply
    247,311.55x = 370,718.10 × 97,493.85
  4. Step 4: Simplify right side
    247,311.55x = 36,142,734,833.69
  5. Step 5: Solve for x
    x = 36,142,734,833.69/247,311.55
  6. Step 6: Final answer
    x = 146,142.53

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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.