Home / 320,228.15-479,677.86-186,703.43

Finding the Fourth Proportional to 320,228.15, 479,677.86 and 186,703.43

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Solution

The fourth proportional to 320,228.15, 479,677.86 and 186,703.43 is: 279,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,228.15 : 479,677.86 = 186,703.43 : x
  2. Step 2: Convert to fraction form
    320,228.15/479,677.86 = 186,703.43/x
  3. Step 3: Cross multiply
    320,228.15x = 479,677.86 × 186,703.43
  4. Step 4: Simplify right side
    320,228.15x = 89,557,499,358.67
  5. Step 5: Solve for x
    x = 89,557,499,358.67/320,228.15
  6. Step 6: Final answer
    x = 279,667.80

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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.