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Finding the Fourth Proportional to 602.70, 904.19 and 255.89

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Solution

The fourth proportional to 602.70, 904.19 and 255.89 is: 383.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.70 : 904.19 = 255.89 : x
  2. Step 2: Convert to fraction form
    602.70/904.19 = 255.89/x
  3. Step 3: Cross multiply
    602.70x = 904.19 × 255.89
  4. Step 4: Simplify right side
    602.70x = 231,367.38
  5. Step 5: Solve for x
    x = 231,367.38/602.70
  6. Step 6: Final answer
    x = 383.88

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1.5x scale

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.