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Finding the Fourth Proportional to 600.90, 901.20 and 253.95

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Solution

The fourth proportional to 600.90, 901.20 and 253.95 is: 380.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.90 : 901.20 = 253.95 : x
  2. Step 2: Convert to fraction form
    600.90/901.20 = 253.95/x
  3. Step 3: Cross multiply
    600.90x = 901.20 × 253.95
  4. Step 4: Simplify right side
    600.90x = 228,859.74
  5. Step 5: Solve for x
    x = 228,859.74/600.90
  6. Step 6: Final answer
    x = 380.86

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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.