Home / 283,810.28-391,660.82-156,490.44

Finding the Fourth Proportional to 283,810.28, 391,660.82 and 156,490.44

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Solution

The fourth proportional to 283,810.28, 391,660.82 and 156,490.44 is: 215,958.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,810.28 : 391,660.82 = 156,490.44 : x
  2. Step 2: Convert to fraction form
    283,810.28/391,660.82 = 156,490.44/x
  3. Step 3: Cross multiply
    283,810.28x = 391,660.82 × 156,490.44
  4. Step 4: Simplify right side
    283,810.28x = 61,291,174,052.56
  5. Step 5: Solve for x
    x = 61,291,174,052.56/283,810.28
  6. Step 6: Final answer
    x = 215,958.26

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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.