Home / 328,766.13-492,401.84-257,243.04

Finding the Fourth Proportional to 328,766.13, 492,401.84 and 257,243.04

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Solution

The fourth proportional to 328,766.13, 492,401.84 and 257,243.04 is: 385,279.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,766.13 : 492,401.84 = 257,243.04 : x
  2. Step 2: Convert to fraction form
    328,766.13/492,401.84 = 257,243.04/x
  3. Step 3: Cross multiply
    328,766.13x = 492,401.84 × 257,243.04
  4. Step 4: Simplify right side
    328,766.13x = 126,666,944,936.98
  5. Step 5: Solve for x
    x = 126,666,944,936.98/328,766.13
  6. Step 6: Final answer
    x = 385,279.79

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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.