Home / 625,401.12-938,276.64-204,972.16

Finding the Fourth Proportional to 625,401.12, 938,276.64 and 204,972.16

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Solution

The fourth proportional to 625,401.12, 938,276.64 and 204,972.16 is: 307,515.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,401.12 : 938,276.64 = 204,972.16 : x
  2. Step 2: Convert to fraction form
    625,401.12/938,276.64 = 204,972.16/x
  3. Step 3: Cross multiply
    625,401.12x = 938,276.64 × 204,972.16
  4. Step 4: Simplify right side
    625,401.12x = 192,320,589,578.34
  5. Step 5: Solve for x
    x = 192,320,589,578.34/625,401.12
  6. Step 6: Final answer
    x = 307,515.58

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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.