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Finding the Fourth Proportional to 600.65, 900.90 and 189.75

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Solution

The fourth proportional to 600.65, 900.90 and 189.75 is: 284.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.65 : 900.90 = 189.75 : x
  2. Step 2: Convert to fraction form
    600.65/900.90 = 189.75/x
  3. Step 3: Cross multiply
    600.65x = 900.90 × 189.75
  4. Step 4: Simplify right side
    600.65x = 170,946.09
  5. Step 5: Solve for x
    x = 170,946.09/600.65
  6. Step 6: Final answer
    x = 284.60

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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.