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Finding the Fourth Proportional to 318,052.45, 477,078.95 and 149,449.11

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Solution

The fourth proportional to 318,052.45, 477,078.95 and 149,449.11 is: 224,173.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,052.45 : 477,078.95 = 149,449.11 : x
  2. Step 2: Convert to fraction form
    318,052.45/477,078.95 = 149,449.11/x
  3. Step 3: Cross multiply
    318,052.45x = 477,078.95 × 149,449.11
  4. Step 4: Simplify right side
    318,052.45x = 71,299,024,477.23
  5. Step 5: Solve for x
    x = 71,299,024,477.23/318,052.45
  6. Step 6: Final answer
    x = 224,173.79

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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.