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Finding the Fourth Proportional to 315,990.92, 473,889.98 and 166,149.92

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Solution

The fourth proportional to 315,990.92, 473,889.98 and 166,149.92 is: 249,174.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,990.92 : 473,889.98 = 166,149.92 : x
  2. Step 2: Convert to fraction form
    315,990.92/473,889.98 = 166,149.92/x
  3. Step 3: Cross multiply
    315,990.92x = 473,889.98 × 166,149.92
  4. Step 4: Simplify right side
    315,990.92x = 78,736,783,865.90
  5. Step 5: Solve for x
    x = 78,736,783,865.90/315,990.92
  6. Step 6: Final answer
    x = 249,174.20

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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.