Home / 397,959.02-549,170.49-225,890.72

Finding the Fourth Proportional to 397,959.02, 549,170.49 and 225,890.72

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Solution

The fourth proportional to 397,959.02, 549,170.49 and 225,890.72 is: 311,721.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,959.02 : 549,170.49 = 225,890.72 : x
  2. Step 2: Convert to fraction form
    397,959.02/549,170.49 = 225,890.72/x
  3. Step 3: Cross multiply
    397,959.02x = 549,170.49 × 225,890.72
  4. Step 4: Simplify right side
    397,959.02x = 124,052,517,388.85
  5. Step 5: Solve for x
    x = 124,052,517,388.85/397,959.02
  6. Step 6: Final answer
    x = 311,721.84

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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.