Home / 436,300.35-654,449.31-136,782.20

Finding the Fourth Proportional to 436,300.35, 654,449.31 and 136,782.20

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Solution

The fourth proportional to 436,300.35, 654,449.31 and 136,782.20 is: 205,172.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,300.35 : 654,449.31 = 136,782.20 : x
  2. Step 2: Convert to fraction form
    436,300.35/654,449.31 = 136,782.20/x
  3. Step 3: Cross multiply
    436,300.35x = 654,449.31 × 136,782.20
  4. Step 4: Simplify right side
    436,300.35x = 89,517,013,138.04
  5. Step 5: Solve for x
    x = 89,517,013,138.04/436,300.35
  6. Step 6: Final answer
    x = 205,172.91

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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.