Home / 283,811.45-391,641.93-156,488.09

Finding the Fourth Proportional to 283,811.45, 391,641.93 and 156,488.09

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Solution

The fourth proportional to 283,811.45, 391,641.93 and 156,488.09 is: 215,943.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,811.45 : 391,641.93 = 156,488.09 : x
  2. Step 2: Convert to fraction form
    283,811.45/391,641.93 = 156,488.09/x
  3. Step 3: Cross multiply
    283,811.45x = 391,641.93 × 156,488.09
  4. Step 4: Simplify right side
    283,811.45x = 61,287,297,589.61
  5. Step 5: Solve for x
    x = 61,287,297,589.61/283,811.45
  6. Step 6: Final answer
    x = 215,943.71

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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.