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Finding the Fourth Proportional to 600.23, 900.31 and 210.11

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Solution

The fourth proportional to 600.23, 900.31 and 210.11 is: 315.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.23 : 900.31 = 210.11 : x
  2. Step 2: Convert to fraction form
    600.23/900.31 = 210.11/x
  3. Step 3: Cross multiply
    600.23x = 900.31 × 210.11
  4. Step 4: Simplify right side
    600.23x = 189,159.11
  5. Step 5: Solve for x
    x = 189,159.11/600.23
  6. Step 6: Final answer
    x = 315.15

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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.