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Finding the Fourth Proportional to 467.03, 644.30 and 289.95

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Solution

The fourth proportional to 467.03, 644.30 and 289.95 is: 400.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.03 : 644.30 = 289.95 : x
  2. Step 2: Convert to fraction form
    467.03/644.30 = 289.95/x
  3. Step 3: Cross multiply
    467.03x = 644.30 × 289.95
  4. Step 4: Simplify right side
    467.03x = 186,812.01
  5. Step 5: Solve for x
    x = 186,812.01/467.03
  6. Step 6: Final answer
    x = 400.00

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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.