Home / 320,934.72-442,872.36-191,875.80

Finding the Fourth Proportional to 320,934.72, 442,872.36 and 191,875.80

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Solution

The fourth proportional to 320,934.72, 442,872.36 and 191,875.80 is: 264,778.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,934.72 : 442,872.36 = 191,875.80 : x
  2. Step 2: Convert to fraction form
    320,934.72/442,872.36 = 191,875.80/x
  3. Step 3: Cross multiply
    320,934.72x = 442,872.36 × 191,875.80
  4. Step 4: Simplify right side
    320,934.72x = 84,976,488,372.89
  5. Step 5: Solve for x
    x = 84,976,488,372.89/320,934.72
  6. Step 6: Final answer
    x = 264,778.11

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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.