Home / 283,742.59-391,567.40-156,422.74

Finding the Fourth Proportional to 283,742.59, 391,567.40 and 156,422.74

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Solution

The fourth proportional to 283,742.59, 391,567.40 and 156,422.74 is: 215,864.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,742.59 : 391,567.40 = 156,422.74 : x
  2. Step 2: Convert to fraction form
    283,742.59/391,567.40 = 156,422.74/x
  3. Step 3: Cross multiply
    283,742.59x = 391,567.40 × 156,422.74
  4. Step 4: Simplify right side
    283,742.59x = 61,250,044,820.56
  5. Step 5: Solve for x
    x = 61,250,044,820.56/283,742.59
  6. Step 6: Final answer
    x = 215,864.83

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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.