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Finding the Fourth Proportional to 400,162.61, 600,243.92 and 163,505.07

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Solution

The fourth proportional to 400,162.61, 600,243.92 and 163,505.07 is: 245,257.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,162.61 : 600,243.92 = 163,505.07 : x
  2. Step 2: Convert to fraction form
    400,162.61/600,243.92 = 163,505.07/x
  3. Step 3: Cross multiply
    400,162.61x = 600,243.92 × 163,505.07
  4. Step 4: Simplify right side
    400,162.61x = 98,142,923,339.15
  5. Step 5: Solve for x
    x = 98,142,923,339.15/400,162.61
  6. Step 6: Final answer
    x = 245,257.61

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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.