Home / 397,432.92-548,462.20-216,149.40

Finding the Fourth Proportional to 397,432.92, 548,462.20 and 216,149.40

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Solution

The fourth proportional to 397,432.92, 548,462.20 and 216,149.40 is: 298,288.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,432.92 : 548,462.20 = 216,149.40 : x
  2. Step 2: Convert to fraction form
    397,432.92/548,462.20 = 216,149.40/x
  3. Step 3: Cross multiply
    397,432.92x = 548,462.20 × 216,149.40
  4. Step 4: Simplify right side
    397,432.92x = 118,549,775,452.68
  5. Step 5: Solve for x
    x = 118,549,775,452.68/397,432.92
  6. Step 6: Final answer
    x = 298,288.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.