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Finding the Fourth Proportional to 252,859.50, 379,311.12 and 65,871

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Solution

The fourth proportional to 252,859.50, 379,311.12 and 65,871 is: 98,812.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,859.50 : 379,311.12 = 65,871 : x
  2. Step 2: Convert to fraction form
    252,859.50/379,311.12 = 65,871/x
  3. Step 3: Cross multiply
    252,859.50x = 379,311.12 × 65,871
  4. Step 4: Simplify right side
    252,859.50x = 24,985,602,785.52
  5. Step 5: Solve for x
    x = 24,985,602,785.52/252,859.50
  6. Step 6: Final answer
    x = 98,812.20

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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.