Home / 283,448.22-391,176.27-156,123.78

Finding the Fourth Proportional to 283,448.22, 391,176.27 and 156,123.78

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Solution

The fourth proportional to 283,448.22, 391,176.27 and 156,123.78 is: 215,460.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,448.22 : 391,176.27 = 156,123.78 : x
  2. Step 2: Convert to fraction form
    283,448.22/391,176.27 = 156,123.78/x
  3. Step 3: Cross multiply
    283,448.22x = 391,176.27 × 156,123.78
  4. Step 4: Simplify right side
    283,448.22x = 61,071,917,918.70
  5. Step 5: Solve for x
    x = 61,071,917,918.70/283,448.22
  6. Step 6: Final answer
    x = 215,460.58

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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.