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Finding the Fourth Proportional to 345.58, 518.10 and 237.58

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Solution

The fourth proportional to 345.58, 518.10 and 237.58 is: 356.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.58 : 518.10 = 237.58 : x
  2. Step 2: Convert to fraction form
    345.58/518.10 = 237.58/x
  3. Step 3: Cross multiply
    345.58x = 518.10 × 237.58
  4. Step 4: Simplify right side
    345.58x = 123,090.20
  5. Step 5: Solve for x
    x = 123,090.20/345.58
  6. Step 6: Final answer
    x = 356.18

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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.