Home / 279,623.07-385,747.90-189,010.66

Finding the Fourth Proportional to 279,623.07, 385,747.90 and 189,010.66

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Solution

The fourth proportional to 279,623.07, 385,747.90 and 189,010.66 is: 260,745.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,623.07 : 385,747.90 = 189,010.66 : x
  2. Step 2: Convert to fraction form
    279,623.07/385,747.90 = 189,010.66/x
  3. Step 3: Cross multiply
    279,623.07x = 385,747.90 × 189,010.66
  4. Step 4: Simplify right side
    279,623.07x = 72,910,465,172.61
  5. Step 5: Solve for x
    x = 72,910,465,172.61/279,623.07
  6. Step 6: Final answer
    x = 260,745.53

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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.