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Finding the Fourth Proportional to 536.02, 739.40 and 314.93

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Solution

The fourth proportional to 536.02, 739.40 and 314.93 is: 434.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.02 : 739.40 = 314.93 : x
  2. Step 2: Convert to fraction form
    536.02/739.40 = 314.93/x
  3. Step 3: Cross multiply
    536.02x = 739.40 × 314.93
  4. Step 4: Simplify right side
    536.02x = 232,859.24
  5. Step 5: Solve for x
    x = 232,859.24/536.02
  6. Step 6: Final answer
    x = 434.42

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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.