Home / 283,588.75-391,360.71-156,272.55

Finding the Fourth Proportional to 283,588.75, 391,360.71 and 156,272.55

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Solution

The fourth proportional to 283,588.75, 391,360.71 and 156,272.55 is: 215,660.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,588.75 : 391,360.71 = 156,272.55 : x
  2. Step 2: Convert to fraction form
    283,588.75/391,360.71 = 156,272.55/x
  3. Step 3: Cross multiply
    283,588.75x = 391,360.71 × 156,272.55
  4. Step 4: Simplify right side
    283,588.75x = 61,158,936,121.51
  5. Step 5: Solve for x
    x = 61,158,936,121.51/283,588.75
  6. Step 6: Final answer
    x = 215,660.66

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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.