Home / 283,439.68-391,164.50-156,115.24

Finding the Fourth Proportional to 283,439.68, 391,164.50 and 156,115.24

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Solution

The fourth proportional to 283,439.68, 391,164.50 and 156,115.24 is: 215,448.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,439.68 : 391,164.50 = 156,115.24 : x
  2. Step 2: Convert to fraction form
    283,439.68/391,164.50 = 156,115.24/x
  3. Step 3: Cross multiply
    283,439.68x = 391,164.50 × 156,115.24
  4. Step 4: Simplify right side
    283,439.68x = 61,066,739,796.98
  5. Step 5: Solve for x
    x = 61,066,739,796.98/283,439.68
  6. Step 6: Final answer
    x = 215,448.80

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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.