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Finding the Fourth Proportional to 323,765.70, 485,648.55 and 235,637.70

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Solution

The fourth proportional to 323,765.70, 485,648.55 and 235,637.70 is: 353,456.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,765.70 : 485,648.55 = 235,637.70 : x
  2. Step 2: Convert to fraction form
    323,765.70/485,648.55 = 235,637.70/x
  3. Step 3: Cross multiply
    323,765.70x = 485,648.55 × 235,637.70
  4. Step 4: Simplify right side
    323,765.70x = 114,437,107,330.34
  5. Step 5: Solve for x
    x = 114,437,107,330.34/323,765.70
  6. Step 6: Final answer
    x = 353,456.55

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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.