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Finding the Fourth Proportional to 299,379.72, 448,831.14 and 172,876.32

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Solution

The fourth proportional to 299,379.72, 448,831.14 and 172,876.32 is: 259,176.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,379.72 : 448,831.14 = 172,876.32 : x
  2. Step 2: Convert to fraction form
    299,379.72/448,831.14 = 172,876.32/x
  3. Step 3: Cross multiply
    299,379.72x = 448,831.14 × 172,876.32
  4. Step 4: Simplify right side
    299,379.72x = 77,592,275,784.60
  5. Step 5: Solve for x
    x = 77,592,275,784.60/299,379.72
  6. Step 6: Final answer
    x = 259,176.79

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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.