Home / 345,788.70-518,475.69-135,175.74

Finding the Fourth Proportional to 345,788.70, 518,475.69 and 135,175.74

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Solution

The fourth proportional to 345,788.70, 518,475.69 and 135,175.74 is: 202,682.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,788.70 : 518,475.69 = 135,175.74 : x
  2. Step 2: Convert to fraction form
    345,788.70/518,475.69 = 135,175.74/x
  3. Step 3: Cross multiply
    345,788.70x = 518,475.69 × 135,175.74
  4. Step 4: Simplify right side
    345,788.70x = 70,085,335,067.76
  5. Step 5: Solve for x
    x = 70,085,335,067.76/345,788.70
  6. Step 6: Final answer
    x = 202,682.55

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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.