Home / 283,983.76-391,895.40-156,664.72

Finding the Fourth Proportional to 283,983.76, 391,895.40 and 156,664.72

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Solution

The fourth proportional to 283,983.76, 391,895.40 and 156,664.72 is: 216,196.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,983.76 : 391,895.40 = 156,664.72 : x
  2. Step 2: Convert to fraction form
    283,983.76/391,895.40 = 156,664.72/x
  3. Step 3: Cross multiply
    283,983.76x = 391,895.40 × 156,664.72
  4. Step 4: Simplify right side
    283,983.76x = 61,396,183,110.29
  5. Step 5: Solve for x
    x = 61,396,183,110.29/283,983.76
  6. Step 6: Final answer
    x = 216,196.11

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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.