Home / 321,025.28-442,867.90-207,884.48

Finding the Fourth Proportional to 321,025.28, 442,867.90 and 207,884.48

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Solution

The fourth proportional to 321,025.28, 442,867.90 and 207,884.48 is: 286,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,025.28 : 442,867.90 = 207,884.48 : x
  2. Step 2: Convert to fraction form
    321,025.28/442,867.90 = 207,884.48/x
  3. Step 3: Cross multiply
    321,025.28x = 442,867.90 × 207,884.48
  4. Step 4: Simplify right side
    321,025.28x = 92,065,363,100.19
  5. Step 5: Solve for x
    x = 92,065,363,100.19/321,025.28
  6. Step 6: Final answer
    x = 286,785.40

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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.