Home / 283,744.10-391,564.29-156,419.70

Finding the Fourth Proportional to 283,744.10, 391,564.29 and 156,419.70

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Solution

The fourth proportional to 283,744.10, 391,564.29 and 156,419.70 is: 215,857.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,744.10 : 391,564.29 = 156,419.70 : x
  2. Step 2: Convert to fraction form
    283,744.10/391,564.29 = 156,419.70/x
  3. Step 3: Cross multiply
    283,744.10x = 391,564.29 × 156,419.70
  4. Step 4: Simplify right side
    283,744.10x = 61,248,368,772.51
  5. Step 5: Solve for x
    x = 61,248,368,772.51/283,744.10
  6. Step 6: Final answer
    x = 215,857.77

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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.