Home / 269,851.28-372,416.63-155,167.20

Finding the Fourth Proportional to 269,851.28, 372,416.63 and 155,167.20

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Solution

The fourth proportional to 269,851.28, 372,416.63 and 155,167.20 is: 214,143.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,851.28 : 372,416.63 = 155,167.20 : x
  2. Step 2: Convert to fraction form
    269,851.28/372,416.63 = 155,167.20/x
  3. Step 3: Cross multiply
    269,851.28x = 372,416.63 × 155,167.20
  4. Step 4: Simplify right side
    269,851.28x = 57,786,844,934.70
  5. Step 5: Solve for x
    x = 57,786,844,934.70/269,851.28
  6. Step 6: Final answer
    x = 214,143.31

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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.