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Finding the Fourth Proportional to 356.54, 531.79 and 302.06

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Solution

The fourth proportional to 356.54, 531.79 and 302.06 is: 450.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.54 : 531.79 = 302.06 : x
  2. Step 2: Convert to fraction form
    356.54/531.79 = 302.06/x
  3. Step 3: Cross multiply
    356.54x = 531.79 × 302.06
  4. Step 4: Simplify right side
    356.54x = 160,632.49
  5. Step 5: Solve for x
    x = 160,632.49/356.54
  6. Step 6: Final answer
    x = 450.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.