Home / 283,984.32-391,901.40-156,658.80

Finding the Fourth Proportional to 283,984.32, 391,901.40 and 156,658.80

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Solution

The fourth proportional to 283,984.32, 391,901.40 and 156,658.80 is: 216,190.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,984.32 : 391,901.40 = 156,658.80 : x
  2. Step 2: Convert to fraction form
    283,984.32/391,901.40 = 156,658.80/x
  3. Step 3: Cross multiply
    283,984.32x = 391,901.40 × 156,658.80
  4. Step 4: Simplify right side
    283,984.32x = 61,394,803,042.32
  5. Step 5: Solve for x
    x = 61,394,803,042.32/283,984.32
  6. Step 6: Final answer
    x = 216,190.82

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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.