Home / 397,867.88-549,064.68-216,585.02

Finding the Fourth Proportional to 397,867.88, 549,064.68 and 216,585.02

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Solution

The fourth proportional to 397,867.88, 549,064.68 and 216,585.02 is: 298,891.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,867.88 : 549,064.68 = 216,585.02 : x
  2. Step 2: Convert to fraction form
    397,867.88/549,064.68 = 216,585.02/x
  3. Step 3: Cross multiply
    397,867.88x = 549,064.68 × 216,585.02
  4. Step 4: Simplify right side
    397,867.88x = 118,919,185,259.56
  5. Step 5: Solve for x
    x = 118,919,185,259.56/397,867.88
  6. Step 6: Final answer
    x = 298,891.14

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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.