Home / 278,629.56-384,532.74-157,792.14

Finding the Fourth Proportional to 278,629.56, 384,532.74 and 157,792.14

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Solution

The fourth proportional to 278,629.56, 384,532.74 and 157,792.14 is: 217,766.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,629.56 : 384,532.74 = 157,792.14 : x
  2. Step 2: Convert to fraction form
    278,629.56/384,532.74 = 157,792.14/x
  3. Step 3: Cross multiply
    278,629.56x = 384,532.74 × 157,792.14
  4. Step 4: Simplify right side
    278,629.56x = 60,676,243,944.66
  5. Step 5: Solve for x
    x = 60,676,243,944.66/278,629.56
  6. Step 6: Final answer
    x = 217,766.71

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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.