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Finding the Fourth Proportional to 469.37, 703.15 and 306.56

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Solution

The fourth proportional to 469.37, 703.15 and 306.56 is: 459.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.37 : 703.15 = 306.56 : x
  2. Step 2: Convert to fraction form
    469.37/703.15 = 306.56/x
  3. Step 3: Cross multiply
    469.37x = 703.15 × 306.56
  4. Step 4: Simplify right side
    469.37x = 215,558.66
  5. Step 5: Solve for x
    x = 215,558.66/469.37
  6. Step 6: Final answer
    x = 459.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.