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Finding the Fourth Proportional to 331,530.59, 497,299.37 and 265,391.15

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Solution

The fourth proportional to 331,530.59, 497,299.37 and 265,391.15 is: 398,089.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,530.59 : 497,299.37 = 265,391.15 : x
  2. Step 2: Convert to fraction form
    331,530.59/497,299.37 = 265,391.15/x
  3. Step 3: Cross multiply
    331,530.59x = 497,299.37 × 265,391.15
  4. Step 4: Simplify right side
    331,530.59x = 131,978,850,682.43
  5. Step 5: Solve for x
    x = 131,978,850,682.43/331,530.59
  6. Step 6: Final answer
    x = 398,089.52

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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.