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Finding the Fourth Proportional to 318,259.28, 477,287.88 and 107,847.92

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Solution

The fourth proportional to 318,259.28, 477,287.88 and 107,847.92 is: 161,737.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,259.28 : 477,287.88 = 107,847.92 : x
  2. Step 2: Convert to fraction form
    318,259.28/477,287.88 = 107,847.92/x
  3. Step 3: Cross multiply
    318,259.28x = 477,287.88 × 107,847.92
  4. Step 4: Simplify right side
    318,259.28x = 51,474,505,099.21
  5. Step 5: Solve for x
    x = 51,474,505,099.21/318,259.28
  6. Step 6: Final answer
    x = 161,737.64

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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.