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Finding the Fourth Proportional to 436.44, 653.54 and 360.35

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Solution

The fourth proportional to 436.44, 653.54 and 360.35 is: 539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.44 : 653.54 = 360.35 : x
  2. Step 2: Convert to fraction form
    436.44/653.54 = 360.35/x
  3. Step 3: Cross multiply
    436.44x = 653.54 × 360.35
  4. Step 4: Simplify right side
    436.44x = 235,503.56
  5. Step 5: Solve for x
    x = 235,503.56/436.44
  6. Step 6: Final answer
    x = 539.60

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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.