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Finding the Fourth Proportional to 518,143.30, 777,324.30 and 163,193.20

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Solution

The fourth proportional to 518,143.30, 777,324.30 and 163,193.20 is: 244,824.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,143.30 : 777,324.30 = 163,193.20 : x
  2. Step 2: Convert to fraction form
    518,143.30/777,324.30 = 163,193.20/x
  3. Step 3: Cross multiply
    518,143.30x = 777,324.30 × 163,193.20
  4. Step 4: Simplify right side
    518,143.30x = 126,854,039,954.76
  5. Step 5: Solve for x
    x = 126,854,039,954.76/518,143.30
  6. Step 6: Final answer
    x = 244,824.24

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1.5x scale

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.