Home / 320,213.52-441,562.32-275,040

Finding the Fourth Proportional to 320,213.52, 441,562.32 and 275,040

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Solution

The fourth proportional to 320,213.52, 441,562.32 and 275,040 is: 379,269.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,213.52 : 441,562.32 = 275,040 : x
  2. Step 2: Convert to fraction form
    320,213.52/441,562.32 = 275,040/x
  3. Step 3: Cross multiply
    320,213.52x = 441,562.32 × 275,040
  4. Step 4: Simplify right side
    320,213.52x = 121,447,300,492.80
  5. Step 5: Solve for x
    x = 121,447,300,492.80/320,213.52
  6. Step 6: Final answer
    x = 379,269.75

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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.