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Finding the Fourth Proportional to 431,289.42, 595,165.69 and 270,231.45

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Solution

The fourth proportional to 431,289.42, 595,165.69 and 270,231.45 is: 372,910.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,289.42 : 595,165.69 = 270,231.45 : x
  2. Step 2: Convert to fraction form
    431,289.42/595,165.69 = 270,231.45/x
  3. Step 3: Cross multiply
    431,289.42x = 595,165.69 × 270,231.45
  4. Step 4: Simplify right side
    431,289.42x = 160,832,487,398.95
  5. Step 5: Solve for x
    x = 160,832,487,398.95/431,289.42
  6. Step 6: Final answer
    x = 372,910.81

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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.