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Finding the Fourth Proportional to 231,820.79, 347,108.22 and 147,122.39

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Solution

The fourth proportional to 231,820.79, 347,108.22 and 147,122.39 is: 220,288.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,820.79 : 347,108.22 = 147,122.39 : x
  2. Step 2: Convert to fraction form
    231,820.79/347,108.22 = 147,122.39/x
  3. Step 3: Cross multiply
    231,820.79x = 347,108.22 × 147,122.39
  4. Step 4: Simplify right side
    231,820.79x = 51,067,391,782.82
  5. Step 5: Solve for x
    x = 51,067,391,782.82/231,820.79
  6. Step 6: Final answer
    x = 220,288.24

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1.5x scale

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.