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Finding the Fourth Proportional to 348.23, 521.35 and 232.40

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Solution

The fourth proportional to 348.23, 521.35 and 232.40 is: 347.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.23 : 521.35 = 232.40 : x
  2. Step 2: Convert to fraction form
    348.23/521.35 = 232.40/x
  3. Step 3: Cross multiply
    348.23x = 521.35 × 232.40
  4. Step 4: Simplify right side
    348.23x = 121,161.74
  5. Step 5: Solve for x
    x = 121,161.74/348.23
  6. Step 6: Final answer
    x = 347.94

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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.