Home / 283,359.16-391,021.60-156,010.96

Finding the Fourth Proportional to 283,359.16, 391,021.60 and 156,010.96

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Solution

The fourth proportional to 283,359.16, 391,021.60 and 156,010.96 is: 215,287.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,359.16 : 391,021.60 = 156,010.96 : x
  2. Step 2: Convert to fraction form
    283,359.16/391,021.60 = 156,010.96/x
  3. Step 3: Cross multiply
    283,359.16x = 391,021.60 × 156,010.96
  4. Step 4: Simplify right side
    283,359.16x = 61,003,655,196.74
  5. Step 5: Solve for x
    x = 61,003,655,196.74/283,359.16
  6. Step 6: Final answer
    x = 215,287.39

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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.