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Finding the Fourth Proportional to 464.88, 695.94 and 342.30

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Solution

The fourth proportional to 464.88, 695.94 and 342.30 is: 512.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.88 : 695.94 = 342.30 : x
  2. Step 2: Convert to fraction form
    464.88/695.94 = 342.30/x
  3. Step 3: Cross multiply
    464.88x = 695.94 × 342.30
  4. Step 4: Simplify right side
    464.88x = 238,220.26
  5. Step 5: Solve for x
    x = 238,220.26/464.88
  6. Step 6: Final answer
    x = 512.43

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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.