Home / 221,442.32-331,664.09-102,864.13

Finding the Fourth Proportional to 221,442.32, 331,664.09 and 102,864.13

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Solution

The fourth proportional to 221,442.32, 331,664.09 and 102,864.13 is: 154,064.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,442.32 : 331,664.09 = 102,864.13 : x
  2. Step 2: Convert to fraction form
    221,442.32/331,664.09 = 102,864.13/x
  3. Step 3: Cross multiply
    221,442.32x = 331,664.09 × 102,864.13
  4. Step 4: Simplify right side
    221,442.32x = 34,116,336,726.61
  5. Step 5: Solve for x
    x = 34,116,336,726.61/221,442.32
  6. Step 6: Final answer
    x = 154,064.21

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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.