Home / 321,204.30-481,806.45-288,026.70

Finding the Fourth Proportional to 321,204.30, 481,806.45 and 288,026.70

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Solution

The fourth proportional to 321,204.30, 481,806.45 and 288,026.70 is: 432,040.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,204.30 : 481,806.45 = 288,026.70 : x
  2. Step 2: Convert to fraction form
    321,204.30/481,806.45 = 288,026.70/x
  3. Step 3: Cross multiply
    321,204.30x = 481,806.45 × 288,026.70
  4. Step 4: Simplify right side
    321,204.30x = 138,773,121,832.22
  5. Step 5: Solve for x
    x = 138,773,121,832.22/321,204.30
  6. Step 6: Final answer
    x = 432,040.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.