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Finding the Fourth Proportional to 318,296.60, 477,444.90 and 149,712.12

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Solution

The fourth proportional to 318,296.60, 477,444.90 and 149,712.12 is: 224,568.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,296.60 : 477,444.90 = 149,712.12 : x
  2. Step 2: Convert to fraction form
    318,296.60/477,444.90 = 149,712.12/x
  3. Step 3: Cross multiply
    318,296.60x = 477,444.90 × 149,712.12
  4. Step 4: Simplify right side
    318,296.60x = 71,479,288,162.19
  5. Step 5: Solve for x
    x = 71,479,288,162.19/318,296.60
  6. Step 6: Final answer
    x = 224,568.18

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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.