Home / 279,821.43-386,153.87-152,497.13

Finding the Fourth Proportional to 279,821.43, 386,153.87 and 152,497.13

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Solution

The fourth proportional to 279,821.43, 386,153.87 and 152,497.13 is: 210,446.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,821.43 : 386,153.87 = 152,497.13 : x
  2. Step 2: Convert to fraction form
    279,821.43/386,153.87 = 152,497.13/x
  3. Step 3: Cross multiply
    279,821.43x = 386,153.87 × 152,497.13
  4. Step 4: Simplify right side
    279,821.43x = 58,887,354,220.14
  5. Step 5: Solve for x
    x = 58,887,354,220.14/279,821.43
  6. Step 6: Final answer
    x = 210,446.19

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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.