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Finding the Fourth Proportional to 313,383.20, 469,297.20 and 251,175.20

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Solution

The fourth proportional to 313,383.20, 469,297.20 and 251,175.20 is: 376,139.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,383.20 : 469,297.20 = 251,175.20 : x
  2. Step 2: Convert to fraction form
    313,383.20/469,297.20 = 251,175.20/x
  3. Step 3: Cross multiply
    313,383.20x = 469,297.20 × 251,175.20
  4. Step 4: Simplify right side
    313,383.20x = 117,875,818,069.44
  5. Step 5: Solve for x
    x = 117,875,818,069.44/313,383.20
  6. Step 6: Final answer
    x = 376,139.56

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1.5x scale

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.