Home / 283,615.22-391,387.14-156,290.92

Finding the Fourth Proportional to 283,615.22, 391,387.14 and 156,290.92

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Solution

The fourth proportional to 283,615.22, 391,387.14 and 156,290.92 is: 215,680.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,615.22 : 391,387.14 = 156,290.92 : x
  2. Step 2: Convert to fraction form
    283,615.22/391,387.14 = 156,290.92/x
  3. Step 3: Cross multiply
    283,615.22x = 391,387.14 × 156,290.92
  4. Step 4: Simplify right side
    283,615.22x = 61,170,255,208.30
  5. Step 5: Solve for x
    x = 61,170,255,208.30/283,615.22
  6. Step 6: Final answer
    x = 215,680.44

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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.