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Finding the Fourth Proportional to 588.05, 811.25 and 378.19

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Solution

The fourth proportional to 588.05, 811.25 and 378.19 is: 521.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.05 : 811.25 = 378.19 : x
  2. Step 2: Convert to fraction form
    588.05/811.25 = 378.19/x
  3. Step 3: Cross multiply
    588.05x = 811.25 × 378.19
  4. Step 4: Simplify right side
    588.05x = 306,805.62
  5. Step 5: Solve for x
    x = 306,805.62/588.05
  6. Step 6: Final answer
    x = 521.73

Related Problems

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Half scale
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Double scale
Find fourth proportional to 589.05, 812.63 and 379.19
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.