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Finding the Fourth Proportional to 531.15, 795.70 and 348.18

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Solution

The fourth proportional to 531.15, 795.70 and 348.18 is: 521.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.15 : 795.70 = 348.18 : x
  2. Step 2: Convert to fraction form
    531.15/795.70 = 348.18/x
  3. Step 3: Cross multiply
    531.15x = 795.70 × 348.18
  4. Step 4: Simplify right side
    531.15x = 277,046.83
  5. Step 5: Solve for x
    x = 277,046.83/531.15
  6. Step 6: Final answer
    x = 521.60

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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.