Home / 283,790.16-391,633.43-156,470.31

Finding the Fourth Proportional to 283,790.16, 391,633.43 and 156,470.31

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Solution

The fourth proportional to 283,790.16, 391,633.43 and 156,470.31 is: 215,930.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,790.16 : 391,633.43 = 156,470.31 : x
  2. Step 2: Convert to fraction form
    283,790.16/391,633.43 = 156,470.31/x
  3. Step 3: Cross multiply
    283,790.16x = 391,633.43 × 156,470.31
  4. Step 4: Simplify right side
    283,790.16x = 61,279,003,416.11
  5. Step 5: Solve for x
    x = 61,279,003,416.11/283,790.16
  6. Step 6: Final answer
    x = 215,930.68

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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.