Home / 283,428.14-391,112.88-156,103.73

Finding the Fourth Proportional to 283,428.14, 391,112.88 and 156,103.73

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Solution

The fourth proportional to 283,428.14, 391,112.88 and 156,103.73 is: 215,413.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,428.14 : 391,112.88 = 156,103.73 : x
  2. Step 2: Convert to fraction form
    283,428.14/391,112.88 = 156,103.73/x
  3. Step 3: Cross multiply
    283,428.14x = 391,112.88 × 156,103.73
  4. Step 4: Simplify right side
    283,428.14x = 61,054,177,463.48
  5. Step 5: Solve for x
    x = 61,054,177,463.48/283,428.14
  6. Step 6: Final answer
    x = 215,413.26

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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.