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Finding the Fourth Proportional to 169,879.40, 254,754.30 and 51,511.40

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Solution

The fourth proportional to 169,879.40, 254,754.30 and 51,511.40 is: 77,247.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,879.40 : 254,754.30 = 51,511.40 : x
  2. Step 2: Convert to fraction form
    169,879.40/254,754.30 = 51,511.40/x
  3. Step 3: Cross multiply
    169,879.40x = 254,754.30 × 51,511.40
  4. Step 4: Simplify right side
    169,879.40x = 13,122,750,649.02
  5. Step 5: Solve for x
    x = 13,122,750,649.02/169,879.40
  6. Step 6: Final answer
    x = 77,247.45

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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.