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Finding the Fourth Proportional to 579.69, 800.28 and 358.83

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Solution

The fourth proportional to 579.69, 800.28 and 358.83 is: 495.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.69 : 800.28 = 358.83 : x
  2. Step 2: Convert to fraction form
    579.69/800.28 = 358.83/x
  3. Step 3: Cross multiply
    579.69x = 800.28 × 358.83
  4. Step 4: Simplify right side
    579.69x = 287,164.47
  5. Step 5: Solve for x
    x = 287,164.47/579.69
  6. Step 6: Final answer
    x = 495.38

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.