Home / 754,240.50-1,131,139.31-221,634.90

Finding the Fourth Proportional to 754,240.50, 1,131,139.31 and 221,634.90

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Solution

The fourth proportional to 754,240.50, 1,131,139.31 and 221,634.90 is: 332,387.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,240.50 : 1,131,139.31 = 221,634.90 : x
  2. Step 2: Convert to fraction form
    754,240.50/1,131,139.31 = 221,634.90/x
  3. Step 3: Cross multiply
    754,240.50x = 1,131,139.31 × 221,634.90
  4. Step 4: Simplify right side
    754,240.50x = 250,699,946,749.74
  5. Step 5: Solve for x
    x = 250,699,946,749.74/754,240.50
  6. Step 6: Final answer
    x = 332,387.28

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1.5x scale

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.