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Finding the Fourth Proportional to 313,020.18, 431,625.51 and 232,596.90

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Solution

The fourth proportional to 313,020.18, 431,625.51 and 232,596.90 is: 320,729.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,020.18 : 431,625.51 = 232,596.90 : x
  2. Step 2: Convert to fraction form
    313,020.18/431,625.51 = 232,596.90/x
  3. Step 3: Cross multiply
    313,020.18x = 431,625.51 × 232,596.90
  4. Step 4: Simplify right side
    313,020.18x = 100,394,755,586.92
  5. Step 5: Solve for x
    x = 100,394,755,586.92/313,020.18
  6. Step 6: Final answer
    x = 320,729.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.