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Finding the Fourth Proportional to 262,311.90, 393,425.84 and 93,800.78

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Solution

The fourth proportional to 262,311.90, 393,425.84 and 93,800.78 is: 140,686.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,311.90 : 393,425.84 = 93,800.78 : x
  2. Step 2: Convert to fraction form
    262,311.90/393,425.84 = 93,800.78/x
  3. Step 3: Cross multiply
    262,311.90x = 393,425.84 × 93,800.78
  4. Step 4: Simplify right side
    262,311.90x = 36,903,650,664.16
  5. Step 5: Solve for x
    x = 36,903,650,664.16/262,311.90
  6. Step 6: Final answer
    x = 140,686.15

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1.5x scale

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.