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Finding the Fourth Proportional to 318,409.32, 477,220.32 and 160,682.88

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Solution

The fourth proportional to 318,409.32, 477,220.32 and 160,682.88 is: 240,825.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,409.32 : 477,220.32 = 160,682.88 : x
  2. Step 2: Convert to fraction form
    318,409.32/477,220.32 = 160,682.88/x
  3. Step 3: Cross multiply
    318,409.32x = 477,220.32 × 160,682.88
  4. Step 4: Simplify right side
    318,409.32x = 76,681,135,412.12
  5. Step 5: Solve for x
    x = 76,681,135,412.12/318,409.32
  6. Step 6: Final answer
    x = 240,825.66

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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.