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Finding the Fourth Proportional to 323,446.41, 485,596.80 and 276,363

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Solution

The fourth proportional to 323,446.41, 485,596.80 and 276,363 is: 414,909.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,446.41 : 485,596.80 = 276,363 : x
  2. Step 2: Convert to fraction form
    323,446.41/485,596.80 = 276,363/x
  3. Step 3: Cross multiply
    323,446.41x = 485,596.80 × 276,363
  4. Step 4: Simplify right side
    323,446.41x = 134,200,988,438.40
  5. Step 5: Solve for x
    x = 134,200,988,438.40/323,446.41
  6. Step 6: Final answer
    x = 414,909.50

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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.