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Finding the Fourth Proportional to 323,718.40, 486,614.40 and 230,867.20

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Solution

The fourth proportional to 323,718.40, 486,614.40 and 230,867.20 is: 347,040.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,718.40 : 486,614.40 = 230,867.20 : x
  2. Step 2: Convert to fraction form
    323,718.40/486,614.40 = 230,867.20/x
  3. Step 3: Cross multiply
    323,718.40x = 486,614.40 × 230,867.20
  4. Step 4: Simplify right side
    323,718.40x = 112,343,304,007.68
  5. Step 5: Solve for x
    x = 112,343,304,007.68/323,718.40
  6. Step 6: Final answer
    x = 347,040.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.