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Finding the Fourth Proportional to 525.39, 788.07 and 217.01

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Solution

The fourth proportional to 525.39, 788.07 and 217.01 is: 325.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.39 : 788.07 = 217.01 : x
  2. Step 2: Convert to fraction form
    525.39/788.07 = 217.01/x
  3. Step 3: Cross multiply
    525.39x = 788.07 × 217.01
  4. Step 4: Simplify right side
    525.39x = 171,021.85
  5. Step 5: Solve for x
    x = 171,021.85/525.39
  6. Step 6: Final answer
    x = 325.51

Related Problems

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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.