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Finding the Fourth Proportional to 318,123.56, 477,185.42 and 149,520.08

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Solution

The fourth proportional to 318,123.56, 477,185.42 and 149,520.08 is: 224,280.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,123.56 : 477,185.42 = 149,520.08 : x
  2. Step 2: Convert to fraction form
    318,123.56/477,185.42 = 149,520.08/x
  3. Step 3: Cross multiply
    318,123.56x = 477,185.42 × 149,520.08
  4. Step 4: Simplify right side
    318,123.56x = 71,348,802,173.23
  5. Step 5: Solve for x
    x = 71,348,802,173.23/318,123.56
  6. Step 6: Final answer
    x = 224,280.16

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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.