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Finding the Fourth Proportional to 464.23, 695.66 and 423.22

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Solution

The fourth proportional to 464.23, 695.66 and 423.22 is: 634.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.23 : 695.66 = 423.22 : x
  2. Step 2: Convert to fraction form
    464.23/695.66 = 423.22/x
  3. Step 3: Cross multiply
    464.23x = 695.66 × 423.22
  4. Step 4: Simplify right side
    464.23x = 294,417.23
  5. Step 5: Solve for x
    x = 294,417.23/464.23
  6. Step 6: Final answer
    x = 634.21

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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.