Home / 283,429.16-391,114.29-156,104.75

Finding the Fourth Proportional to 283,429.16, 391,114.29 and 156,104.75

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Solution

The fourth proportional to 283,429.16, 391,114.29 and 156,104.75 is: 215,414.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,429.16 : 391,114.29 = 156,104.75 : x
  2. Step 2: Convert to fraction form
    283,429.16/391,114.29 = 156,104.75/x
  3. Step 3: Cross multiply
    283,429.16x = 391,114.29 × 156,104.75
  4. Step 4: Simplify right side
    283,429.16x = 61,054,799,146.97
  5. Step 5: Solve for x
    x = 61,054,799,146.97/283,429.16
  6. Step 6: Final answer
    x = 215,414.67

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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.