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Finding the Fourth Proportional to 592.20, 817.18 and 330.19

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Solution

The fourth proportional to 592.20, 817.18 and 330.19 is: 455.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.20 : 817.18 = 330.19 : x
  2. Step 2: Convert to fraction form
    592.20/817.18 = 330.19/x
  3. Step 3: Cross multiply
    592.20x = 817.18 × 330.19
  4. Step 4: Simplify right side
    592.20x = 269,823.01
  5. Step 5: Solve for x
    x = 269,823.01/592.20
  6. Step 6: Final answer
    x = 455.63

Related Problems

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.