Home / 283,829.40-391,685.22-156,503.88

Finding the Fourth Proportional to 283,829.40, 391,685.22 and 156,503.88

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Solution

The fourth proportional to 283,829.40, 391,685.22 and 156,503.88 is: 215,975.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,829.40 : 391,685.22 = 156,503.88 : x
  2. Step 2: Convert to fraction form
    283,829.40/391,685.22 = 156,503.88/x
  3. Step 3: Cross multiply
    283,829.40x = 391,685.22 × 156,503.88
  4. Step 4: Simplify right side
    283,829.40x = 61,300,256,668.65
  5. Step 5: Solve for x
    x = 61,300,256,668.65/283,829.40
  6. Step 6: Final answer
    x = 215,975.71

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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.