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Finding the Fourth Proportional to 535.13, 739.05 and 435.81

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Solution

The fourth proportional to 535.13, 739.05 and 435.81 is: 601.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.13 : 739.05 = 435.81 : x
  2. Step 2: Convert to fraction form
    535.13/739.05 = 435.81/x
  3. Step 3: Cross multiply
    535.13x = 739.05 × 435.81
  4. Step 4: Simplify right side
    535.13x = 322,085.38
  5. Step 5: Solve for x
    x = 322,085.38/535.13
  6. Step 6: Final answer
    x = 601.88

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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.