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Finding the Fourth Proportional to 518,201.72, 777,330.40 and 163,243.52

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Solution

The fourth proportional to 518,201.72, 777,330.40 and 163,243.52 is: 244,874.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,201.72 : 777,330.40 = 163,243.52 : x
  2. Step 2: Convert to fraction form
    518,201.72/777,330.40 = 163,243.52/x
  3. Step 3: Cross multiply
    518,201.72x = 777,330.40 × 163,243.52
  4. Step 4: Simplify right side
    518,201.72x = 126,894,150,699.01
  5. Step 5: Solve for x
    x = 126,894,150,699.01/518,201.72
  6. Step 6: Final answer
    x = 244,874.04

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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.