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Finding the Fourth Proportional to 276,726.70, 415,090.05 and 164,752.30

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Solution

The fourth proportional to 276,726.70, 415,090.05 and 164,752.30 is: 247,128.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,726.70 : 415,090.05 = 164,752.30 : x
  2. Step 2: Convert to fraction form
    276,726.70/415,090.05 = 164,752.30/x
  3. Step 3: Cross multiply
    276,726.70x = 415,090.05 × 164,752.30
  4. Step 4: Simplify right side
    276,726.70x = 68,387,040,444.62
  5. Step 5: Solve for x
    x = 68,387,040,444.62/276,726.70
  6. Step 6: Final answer
    x = 247,128.45

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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.