Home / 283,651.47-391,438.24-156,327.03

Finding the Fourth Proportional to 283,651.47, 391,438.24 and 156,327.03

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Solution

The fourth proportional to 283,651.47, 391,438.24 and 156,327.03 is: 215,730.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,651.47 : 391,438.24 = 156,327.03 : x
  2. Step 2: Convert to fraction form
    283,651.47/391,438.24 = 156,327.03/x
  3. Step 3: Cross multiply
    283,651.47x = 391,438.24 × 156,327.03
  4. Step 4: Simplify right side
    283,651.47x = 61,192,377,096.81
  5. Step 5: Solve for x
    x = 61,192,377,096.81/283,651.47
  6. Step 6: Final answer
    x = 215,730.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.