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Finding the Fourth Proportional to 583.28, 874.80 and 193.28

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Solution

The fourth proportional to 583.28, 874.80 and 193.28 is: 289.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.28 : 874.80 = 193.28 : x
  2. Step 2: Convert to fraction form
    583.28/874.80 = 193.28/x
  3. Step 3: Cross multiply
    583.28x = 874.80 × 193.28
  4. Step 4: Simplify right side
    583.28x = 169,081.34
  5. Step 5: Solve for x
    x = 169,081.34/583.28
  6. Step 6: Final answer
    x = 289.88

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.