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Finding the Fourth Proportional to 536.04, 739.91 and 315.05

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Solution

The fourth proportional to 536.04, 739.91 and 315.05 is: 434.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.04 : 739.91 = 315.05 : x
  2. Step 2: Convert to fraction form
    536.04/739.91 = 315.05/x
  3. Step 3: Cross multiply
    536.04x = 739.91 × 315.05
  4. Step 4: Simplify right side
    536.04x = 233,111.28
  5. Step 5: Solve for x
    x = 233,111.28/536.04
  6. Step 6: Final answer
    x = 434.88

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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.