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Finding the Fourth Proportional to 436.20, 600.45 and 380.85

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Solution

The fourth proportional to 436.20, 600.45 and 380.85 is: 524.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.20 : 600.45 = 380.85 : x
  2. Step 2: Convert to fraction form
    436.20/600.45 = 380.85/x
  3. Step 3: Cross multiply
    436.20x = 600.45 × 380.85
  4. Step 4: Simplify right side
    436.20x = 228,681.38
  5. Step 5: Solve for x
    x = 228,681.38/436.20
  6. Step 6: Final answer
    x = 524.26

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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.