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Finding the Fourth Proportional to 571.48, 857.43 and 242.49

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Solution

The fourth proportional to 571.48, 857.43 and 242.49 is: 363.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.48 : 857.43 = 242.49 : x
  2. Step 2: Convert to fraction form
    571.48/857.43 = 242.49/x
  3. Step 3: Cross multiply
    571.48x = 857.43 × 242.49
  4. Step 4: Simplify right side
    571.48x = 207,918.20
  5. Step 5: Solve for x
    x = 207,918.20/571.48
  6. Step 6: Final answer
    x = 363.82

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.