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Finding the Fourth Proportional to 464.51, 697.20 and 310.55

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Solution

The fourth proportional to 464.51, 697.20 and 310.55 is: 466.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.51 : 697.20 = 310.55 : x
  2. Step 2: Convert to fraction form
    464.51/697.20 = 310.55/x
  3. Step 3: Cross multiply
    464.51x = 697.20 × 310.55
  4. Step 4: Simplify right side
    464.51x = 216,515.46
  5. Step 5: Solve for x
    x = 216,515.46/464.51
  6. Step 6: Final answer
    x = 466.12

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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.