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Finding the Fourth Proportional to 571.39, 857.07 and 242.33

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Solution

The fourth proportional to 571.39, 857.07 and 242.33 is: 363.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.39 : 857.07 = 242.33 : x
  2. Step 2: Convert to fraction form
    571.39/857.07 = 242.33/x
  3. Step 3: Cross multiply
    571.39x = 857.07 × 242.33
  4. Step 4: Simplify right side
    571.39x = 207,689.49
  5. Step 5: Solve for x
    x = 207,689.49/571.39
  6. Step 6: Final answer
    x = 363.48

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.