Home / 283,983.60-391,894.80-156,660.24

Finding the Fourth Proportional to 283,983.60, 391,894.80 and 156,660.24

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Solution

The fourth proportional to 283,983.60, 391,894.80 and 156,660.24 is: 216,189.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,983.60 : 391,894.80 = 156,660.24 : x
  2. Step 2: Convert to fraction form
    283,983.60/391,894.80 = 156,660.24/x
  3. Step 3: Cross multiply
    283,983.60x = 391,894.80 × 156,660.24
  4. Step 4: Simplify right side
    283,983.60x = 61,394,333,422.75
  5. Step 5: Solve for x
    x = 61,394,333,422.75/283,983.60
  6. Step 6: Final answer
    x = 216,189.71

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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.