Home / 251,115.84-346,542.40-136,396.72

Finding the Fourth Proportional to 251,115.84, 346,542.40 and 136,396.72

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Solution

The fourth proportional to 251,115.84, 346,542.40 and 136,396.72 is: 188,228.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,115.84 : 346,542.40 = 136,396.72 : x
  2. Step 2: Convert to fraction form
    251,115.84/346,542.40 = 136,396.72/x
  3. Step 3: Cross multiply
    251,115.84x = 346,542.40 × 136,396.72
  4. Step 4: Simplify right side
    251,115.84x = 47,267,246,018.94
  5. Step 5: Solve for x
    x = 47,267,246,018.94/251,115.84
  6. Step 6: Final answer
    x = 188,228.85

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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.