Home / 397,982.64-549,038.52-268,879.56

Finding the Fourth Proportional to 397,982.64, 549,038.52 and 268,879.56

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Solution

The fourth proportional to 397,982.64, 549,038.52 and 268,879.56 is: 370,933.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,982.64 : 549,038.52 = 268,879.56 : x
  2. Step 2: Convert to fraction form
    397,982.64/549,038.52 = 268,879.56/x
  3. Step 3: Cross multiply
    397,982.64x = 549,038.52 × 268,879.56
  4. Step 4: Simplify right side
    397,982.64x = 147,625,235,680.65
  5. Step 5: Solve for x
    x = 147,625,235,680.65/397,982.64
  6. Step 6: Final answer
    x = 370,933.86

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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.