Home / 397,756.20-548,899.86-216,468.36

Finding the Fourth Proportional to 397,756.20, 548,899.86 and 216,468.36

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Solution

The fourth proportional to 397,756.20, 548,899.86 and 216,468.36 is: 298,724.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,756.20 : 548,899.86 = 216,468.36 : x
  2. Step 2: Convert to fraction form
    397,756.20/548,899.86 = 216,468.36/x
  3. Step 3: Cross multiply
    397,756.20x = 548,899.86 × 216,468.36
  4. Step 4: Simplify right side
    397,756.20x = 118,819,452,498.43
  5. Step 5: Solve for x
    x = 118,819,452,498.43/397,756.20
  6. Step 6: Final answer
    x = 298,724.33

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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.