Home / 283,335.06-391,010.99-156,015.21

Finding the Fourth Proportional to 283,335.06, 391,010.99 and 156,015.21

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Solution

The fourth proportional to 283,335.06, 391,010.99 and 156,015.21 is: 215,305.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,335.06 : 391,010.99 = 156,015.21 : x
  2. Step 2: Convert to fraction form
    283,335.06/391,010.99 = 156,015.21/x
  3. Step 3: Cross multiply
    283,335.06x = 391,010.99 × 156,015.21
  4. Step 4: Simplify right side
    283,335.06x = 61,003,661,717.16
  5. Step 5: Solve for x
    x = 61,003,661,717.16/283,335.06
  6. Step 6: Final answer
    x = 215,305.73

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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.