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Finding the Fourth Proportional to 464.04, 695.80 and 220.56

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Solution

The fourth proportional to 464.04, 695.80 and 220.56 is: 330.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.04 : 695.80 = 220.56 : x
  2. Step 2: Convert to fraction form
    464.04/695.80 = 220.56/x
  3. Step 3: Cross multiply
    464.04x = 695.80 × 220.56
  4. Step 4: Simplify right side
    464.04x = 153,465.65
  5. Step 5: Solve for x
    x = 153,465.65/464.04
  6. Step 6: Final answer
    x = 330.72

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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.