Home / 838,137.85-1,257,401.99-239,107.21

Finding the Fourth Proportional to 838,137.85, 1,257,401.99 and 239,107.21

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Solution

The fourth proportional to 838,137.85, 1,257,401.99 and 239,107.21 is: 358,716.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,137.85 : 1,257,401.99 = 239,107.21 : x
  2. Step 2: Convert to fraction form
    838,137.85/1,257,401.99 = 239,107.21/x
  3. Step 3: Cross multiply
    838,137.85x = 1,257,401.99 × 239,107.21
  4. Step 4: Simplify right side
    838,137.85x = 300,653,881,677.35
  5. Step 5: Solve for x
    x = 300,653,881,677.35/838,137.85
  6. Step 6: Final answer
    x = 358,716.51

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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.