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Finding the Fourth Proportional to 271,726.65, 407,660.45 and 103,249.89

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Solution

The fourth proportional to 271,726.65, 407,660.45 and 103,249.89 is: 154,901.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,726.65 : 407,660.45 = 103,249.89 : x
  2. Step 2: Convert to fraction form
    271,726.65/407,660.45 = 103,249.89/x
  3. Step 3: Cross multiply
    271,726.65x = 407,660.45 × 103,249.89
  4. Step 4: Simplify right side
    271,726.65x = 42,090,896,103.60
  5. Step 5: Solve for x
    x = 42,090,896,103.60/271,726.65
  6. Step 6: Final answer
    x = 154,901.61

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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.