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Finding the Fourth Proportional to 323,728.76, 446,586.90 and 216,325.16

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Solution

The fourth proportional to 323,728.76, 446,586.90 and 216,325.16 is: 298,422.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,728.76 : 446,586.90 = 216,325.16 : x
  2. Step 2: Convert to fraction form
    323,728.76/446,586.90 = 216,325.16/x
  3. Step 3: Cross multiply
    323,728.76x = 446,586.90 × 216,325.16
  4. Step 4: Simplify right side
    323,728.76x = 96,607,982,596.40
  5. Step 5: Solve for x
    x = 96,607,982,596.40/323,728.76
  6. Step 6: Final answer
    x = 298,422.61

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1.5x scale

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.