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Finding the Fourth Proportional to 383,108.72, 528,704 and 237,994.48

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Solution

The fourth proportional to 383,108.72, 528,704 and 237,994.48 is: 328,441.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,108.72 : 528,704 = 237,994.48 : x
  2. Step 2: Convert to fraction form
    383,108.72/528,704 = 237,994.48/x
  3. Step 3: Cross multiply
    383,108.72x = 528,704 × 237,994.48
  4. Step 4: Simplify right side
    383,108.72x = 125,828,633,553.92
  5. Step 5: Solve for x
    x = 125,828,633,553.92/383,108.72
  6. Step 6: Final answer
    x = 328,441.06

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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.