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Finding the Fourth Proportional to 423.50, 632.21 and 377.46

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Solution

The fourth proportional to 423.50, 632.21 and 377.46 is: 563.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.50 : 632.21 = 377.46 : x
  2. Step 2: Convert to fraction form
    423.50/632.21 = 377.46/x
  3. Step 3: Cross multiply
    423.50x = 632.21 × 377.46
  4. Step 4: Simplify right side
    423.50x = 238,632.10
  5. Step 5: Solve for x
    x = 238,632.10/423.50
  6. Step 6: Final answer
    x = 563.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.