Home / 221,257.40-331,886.10-181,891.40

Finding the Fourth Proportional to 221,257.40, 331,886.10 and 181,891.40

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Solution

The fourth proportional to 221,257.40, 331,886.10 and 181,891.40 is: 272,837.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,257.40 : 331,886.10 = 181,891.40 : x
  2. Step 2: Convert to fraction form
    221,257.40/331,886.10 = 181,891.40/x
  3. Step 3: Cross multiply
    221,257.40x = 331,886.10 × 181,891.40
  4. Step 4: Simplify right side
    221,257.40x = 60,367,227,369.54
  5. Step 5: Solve for x
    x = 60,367,227,369.54/221,257.40
  6. Step 6: Final answer
    x = 272,837.10

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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.