Home / 283,665.80-391,461.18-156,341.72

Finding the Fourth Proportional to 283,665.80, 391,461.18 and 156,341.72

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Solution

The fourth proportional to 283,665.80, 391,461.18 and 156,341.72 is: 215,752.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,665.80 : 391,461.18 = 156,341.72 : x
  2. Step 2: Convert to fraction form
    283,665.80/391,461.18 = 156,341.72/x
  3. Step 3: Cross multiply
    283,665.80x = 391,461.18 × 156,341.72
  4. Step 4: Simplify right side
    283,665.80x = 61,201,714,194.43
  5. Step 5: Solve for x
    x = 61,201,714,194.43/283,665.80
  6. Step 6: Final answer
    x = 215,752.88

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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.