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Finding the Fourth Proportional to 363.69, 501.71 and 253.26

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Solution

The fourth proportional to 363.69, 501.71 and 253.26 is: 349.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.69 : 501.71 = 253.26 : x
  2. Step 2: Convert to fraction form
    363.69/501.71 = 253.26/x
  3. Step 3: Cross multiply
    363.69x = 501.71 × 253.26
  4. Step 4: Simplify right side
    363.69x = 127,061.81
  5. Step 5: Solve for x
    x = 127,061.81/363.69
  6. Step 6: Final answer
    x = 349.37

Related Problems

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Double scale
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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.