Home / 320,553.90-442,500.48-199,754.82

Finding the Fourth Proportional to 320,553.90, 442,500.48 and 199,754.82

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Solution

The fourth proportional to 320,553.90, 442,500.48 and 199,754.82 is: 275,746.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,553.90 : 442,500.48 = 199,754.82 : x
  2. Step 2: Convert to fraction form
    320,553.90/442,500.48 = 199,754.82/x
  3. Step 3: Cross multiply
    320,553.90x = 442,500.48 × 199,754.82
  4. Step 4: Simplify right side
    320,553.90x = 88,391,603,732.31
  5. Step 5: Solve for x
    x = 88,391,603,732.31/320,553.90
  6. Step 6: Final answer
    x = 275,746.46

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1.5x scale

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.