Home / 283,450.78-391,162.04-156,126.38

Finding the Fourth Proportional to 283,450.78, 391,162.04 and 156,126.38

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Solution

The fourth proportional to 283,450.78, 391,162.04 and 156,126.38 is: 215,454.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,450.78 : 391,162.04 = 156,126.38 : x
  2. Step 2: Convert to fraction form
    283,450.78/391,162.04 = 156,126.38/x
  3. Step 3: Cross multiply
    283,450.78x = 391,162.04 × 156,126.38
  4. Step 4: Simplify right side
    283,450.78x = 61,070,713,298.62
  5. Step 5: Solve for x
    x = 61,070,713,298.62/283,450.78
  6. Step 6: Final answer
    x = 215,454.38

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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.