Home / 283,445.53-391,155.89-156,120.82

Finding the Fourth Proportional to 283,445.53, 391,155.89 and 156,120.82

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Solution

The fourth proportional to 283,445.53, 391,155.89 and 156,120.82 is: 215,447.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,445.53 : 391,155.89 = 156,120.82 : x
  2. Step 2: Convert to fraction form
    283,445.53/391,155.89 = 156,120.82/x
  3. Step 3: Cross multiply
    283,445.53x = 391,155.89 × 156,120.82
  4. Step 4: Simplify right side
    283,445.53x = 61,067,576,536.14
  5. Step 5: Solve for x
    x = 61,067,576,536.14/283,445.53
  6. Step 6: Final answer
    x = 215,447.31

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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.