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Finding the Fourth Proportional to 535.36, 737.28 and 436.80

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Solution

The fourth proportional to 535.36, 737.28 and 436.80 is: 601.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.36 : 737.28 = 436.80 : x
  2. Step 2: Convert to fraction form
    535.36/737.28 = 436.80/x
  3. Step 3: Cross multiply
    535.36x = 737.28 × 436.80
  4. Step 4: Simplify right side
    535.36x = 322,043.90
  5. Step 5: Solve for x
    x = 322,043.90/535.36
  6. Step 6: Final answer
    x = 601.55

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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.