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Finding the Fourth Proportional to 583.54, 874.23 and 290.71

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Solution

The fourth proportional to 583.54, 874.23 and 290.71 is: 435.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.54 : 874.23 = 290.71 : x
  2. Step 2: Convert to fraction form
    583.54/874.23 = 290.71/x
  3. Step 3: Cross multiply
    583.54x = 874.23 × 290.71
  4. Step 4: Simplify right side
    583.54x = 254,141.58
  5. Step 5: Solve for x
    x = 254,141.58/583.54
  6. Step 6: Final answer
    x = 435.52

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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.