Home / 283,499.28-391,214.61-156,172.14

Finding the Fourth Proportional to 283,499.28, 391,214.61 and 156,172.14

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Solution

The fourth proportional to 283,499.28, 391,214.61 and 156,172.14 is: 215,509.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,499.28 : 391,214.61 = 156,172.14 : x
  2. Step 2: Convert to fraction form
    283,499.28/391,214.61 = 156,172.14/x
  3. Step 3: Cross multiply
    283,499.28x = 391,214.61 × 156,172.14
  4. Step 4: Simplify right side
    283,499.28x = 61,096,822,842.97
  5. Step 5: Solve for x
    x = 61,096,822,842.97/283,499.28
  6. Step 6: Final answer
    x = 215,509.62

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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.