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Finding the Fourth Proportional to 466.50, 644.13 and 368.76

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Solution

The fourth proportional to 466.50, 644.13 and 368.76 is: 509.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.50 : 644.13 = 368.76 : x
  2. Step 2: Convert to fraction form
    466.50/644.13 = 368.76/x
  3. Step 3: Cross multiply
    466.50x = 644.13 × 368.76
  4. Step 4: Simplify right side
    466.50x = 237,529.38
  5. Step 5: Solve for x
    x = 237,529.38/466.50
  6. Step 6: Final answer
    x = 509.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.