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Finding the Fourth Proportional to 345,101.62, 517,704.67 and 108,422.05

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Solution

The fourth proportional to 345,101.62, 517,704.67 and 108,422.05 is: 162,649.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,101.62 : 517,704.67 = 108,422.05 : x
  2. Step 2: Convert to fraction form
    345,101.62/517,704.67 = 108,422.05/x
  3. Step 3: Cross multiply
    345,101.62x = 517,704.67 × 108,422.05
  4. Step 4: Simplify right side
    345,101.62x = 56,130,599,027.45
  5. Step 5: Solve for x
    x = 56,130,599,027.45/345,101.62
  6. Step 6: Final answer
    x = 162,649.48

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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.