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Finding the Fourth Proportional to 466.70, 695.03 and 438.75

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Solution

The fourth proportional to 466.70, 695.03 and 438.75 is: 653.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.70 : 695.03 = 438.75 : x
  2. Step 2: Convert to fraction form
    466.70/695.03 = 438.75/x
  3. Step 3: Cross multiply
    466.70x = 695.03 × 438.75
  4. Step 4: Simplify right side
    466.70x = 304,942.22
  5. Step 5: Solve for x
    x = 304,942.22/466.70
  6. Step 6: Final answer
    x = 653.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.