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Finding the Fourth Proportional to 169,719.40, 254,514.30 and 51,351.40

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Solution

The fourth proportional to 169,719.40, 254,514.30 and 51,351.40 is: 77,007.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,719.40 : 254,514.30 = 51,351.40 : x
  2. Step 2: Convert to fraction form
    169,719.40/254,514.30 = 51,351.40/x
  3. Step 3: Cross multiply
    169,719.40x = 254,514.30 × 51,351.40
  4. Step 4: Simplify right side
    169,719.40x = 13,069,665,625.02
  5. Step 5: Solve for x
    x = 13,069,665,625.02/169,719.40
  6. Step 6: Final answer
    x = 77,007.49

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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.