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Finding the Fourth Proportional to 590.39, 885.89 and 330.23

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Solution

The fourth proportional to 590.39, 885.89 and 330.23 is: 495.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.39 : 885.89 = 330.23 : x
  2. Step 2: Convert to fraction form
    590.39/885.89 = 330.23/x
  3. Step 3: Cross multiply
    590.39x = 885.89 × 330.23
  4. Step 4: Simplify right side
    590.39x = 292,541.37
  5. Step 5: Solve for x
    x = 292,541.37/590.39
  6. Step 6: Final answer
    x = 495.51

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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.