Home / 251,185-346,557.10-154,287.20

Finding the Fourth Proportional to 251,185, 346,557.10 and 154,287.20

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Solution

The fourth proportional to 251,185, 346,557.10 and 154,287.20 is: 212,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,185 : 346,557.10 = 154,287.20 : x
  2. Step 2: Convert to fraction form
    251,185/346,557.10 = 154,287.20/x
  3. Step 3: Cross multiply
    251,185x = 346,557.10 × 154,287.20
  4. Step 4: Simplify right side
    251,185x = 53,469,324,599.12
  5. Step 5: Solve for x
    x = 53,469,324,599.12/251,185
  6. Step 6: Final answer
    x = 212,868.30

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1.5x scale

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.