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Finding the Fourth Proportional to 518,145.30, 777,327.30 and 163,195.20

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Solution

The fourth proportional to 518,145.30, 777,327.30 and 163,195.20 is: 244,827.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,145.30 : 777,327.30 = 163,195.20 : x
  2. Step 2: Convert to fraction form
    518,145.30/777,327.30 = 163,195.20/x
  3. Step 3: Cross multiply
    518,145.30x = 777,327.30 × 163,195.20
  4. Step 4: Simplify right side
    518,145.30x = 126,856,084,188.96
  5. Step 5: Solve for x
    x = 126,856,084,188.96/518,145.30
  6. Step 6: Final answer
    x = 244,827.24

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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.