Home / 283,828.80-391,684.56-156,501.60

Finding the Fourth Proportional to 283,828.80, 391,684.56 and 156,501.60

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Solution

The fourth proportional to 283,828.80, 391,684.56 and 156,501.60 is: 215,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,828.80 : 391,684.56 = 156,501.60 : x
  2. Step 2: Convert to fraction form
    283,828.80/391,684.56 = 156,501.60/x
  3. Step 3: Cross multiply
    283,828.80x = 391,684.56 × 156,501.60
  4. Step 4: Simplify right side
    283,828.80x = 61,299,260,335.30
  5. Step 5: Solve for x
    x = 61,299,260,335.30/283,828.80
  6. Step 6: Final answer
    x = 215,972.66

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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.