Home / 397,645.55-548,734.41-216,358.18

Finding the Fourth Proportional to 397,645.55, 548,734.41 and 216,358.18

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Solution

The fourth proportional to 397,645.55, 548,734.41 and 216,358.18 is: 298,565.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,645.55 : 548,734.41 = 216,358.18 : x
  2. Step 2: Convert to fraction form
    397,645.55/548,734.41 = 216,358.18/x
  3. Step 3: Cross multiply
    397,645.55x = 548,734.41 × 216,358.18
  4. Step 4: Simplify right side
    397,645.55x = 118,723,176,879.14
  5. Step 5: Solve for x
    x = 118,723,176,879.14/397,645.55
  6. Step 6: Final answer
    x = 298,565.34

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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.