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Finding the Fourth Proportional to 463.50, 695.28 and 434.34

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Solution

The fourth proportional to 463.50, 695.28 and 434.34 is: 651.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.50 : 695.28 = 434.34 : x
  2. Step 2: Convert to fraction form
    463.50/695.28 = 434.34/x
  3. Step 3: Cross multiply
    463.50x = 695.28 × 434.34
  4. Step 4: Simplify right side
    463.50x = 301,987.92
  5. Step 5: Solve for x
    x = 301,987.92/463.50
  6. Step 6: Final answer
    x = 651.54

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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.