Home / 283,912.20-391,795.80-156,585.06

Finding the Fourth Proportional to 283,912.20, 391,795.80 and 156,585.06

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Solution

The fourth proportional to 283,912.20, 391,795.80 and 156,585.06 is: 216,085.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,912.20 : 391,795.80 = 156,585.06 : x
  2. Step 2: Convert to fraction form
    283,912.20/391,795.80 = 156,585.06/x
  3. Step 3: Cross multiply
    283,912.20x = 391,795.80 × 156,585.06
  4. Step 4: Simplify right side
    283,912.20x = 61,349,368,850.75
  5. Step 5: Solve for x
    x = 61,349,368,850.75/283,912.20
  6. Step 6: Final answer
    x = 216,085.71

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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.