Home / 279,117.04-385,170.78-151,792.78

Finding the Fourth Proportional to 279,117.04, 385,170.78 and 151,792.78

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Solution

The fourth proportional to 279,117.04, 385,170.78 and 151,792.78 is: 209,468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,117.04 : 385,170.78 = 151,792.78 : x
  2. Step 2: Convert to fraction form
    279,117.04/385,170.78 = 151,792.78/x
  3. Step 3: Cross multiply
    279,117.04x = 385,170.78 × 151,792.78
  4. Step 4: Simplify right side
    279,117.04x = 58,466,143,470.97
  5. Step 5: Solve for x
    x = 58,466,143,470.97/279,117.04
  6. Step 6: Final answer
    x = 209,468.20

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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.