Home / 281,192.18-388,791.70-245,762.78

Finding the Fourth Proportional to 281,192.18, 388,791.70 and 245,762.78

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Solution

The fourth proportional to 281,192.18, 388,791.70 and 245,762.78 is: 339,805.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,192.18 : 388,791.70 = 245,762.78 : x
  2. Step 2: Convert to fraction form
    281,192.18/388,791.70 = 245,762.78/x
  3. Step 3: Cross multiply
    281,192.18x = 388,791.70 × 245,762.78
  4. Step 4: Simplify right side
    281,192.18x = 95,550,526,474.56
  5. Step 5: Solve for x
    x = 95,550,526,474.56/281,192.18
  6. Step 6: Final answer
    x = 339,805.07

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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.