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Finding the Fourth Proportional to 467.65, 701.25 and 313.75

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Solution

The fourth proportional to 467.65, 701.25 and 313.75 is: 470.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.65 : 701.25 = 313.75 : x
  2. Step 2: Convert to fraction form
    467.65/701.25 = 313.75/x
  3. Step 3: Cross multiply
    467.65x = 701.25 × 313.75
  4. Step 4: Simplify right side
    467.65x = 220,017.19
  5. Step 5: Solve for x
    x = 220,017.19/467.65
  6. Step 6: Final answer
    x = 470.47

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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.