Home / 398,517.11-549,942.66-217,232.58

Finding the Fourth Proportional to 398,517.11, 549,942.66 and 217,232.58

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Solution

The fourth proportional to 398,517.11, 549,942.66 and 217,232.58 is: 299,775.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,517.11 : 549,942.66 = 217,232.58 : x
  2. Step 2: Convert to fraction form
    398,517.11/549,942.66 = 217,232.58/x
  3. Step 3: Cross multiply
    398,517.11x = 549,942.66 × 217,232.58
  4. Step 4: Simplify right side
    398,517.11x = 119,465,464,946.15
  5. Step 5: Solve for x
    x = 119,465,464,946.15/398,517.11
  6. Step 6: Final answer
    x = 299,775.00

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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.