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Finding the Fourth Proportional to 534.80, 737.16 and 436.40

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Solution

The fourth proportional to 534.80, 737.16 and 436.40 is: 601.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.80 : 737.16 = 436.40 : x
  2. Step 2: Convert to fraction form
    534.80/737.16 = 436.40/x
  3. Step 3: Cross multiply
    534.80x = 737.16 × 436.40
  4. Step 4: Simplify right side
    534.80x = 321,696.62
  5. Step 5: Solve for x
    x = 321,696.62/534.80
  6. Step 6: Final answer
    x = 601.53

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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.