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Finding the Fourth Proportional to 370.10, 555.18 and 346.10

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Solution

The fourth proportional to 370.10, 555.18 and 346.10 is: 519.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.10 : 555.18 = 346.10 : x
  2. Step 2: Convert to fraction form
    370.10/555.18 = 346.10/x
  3. Step 3: Cross multiply
    370.10x = 555.18 × 346.10
  4. Step 4: Simplify right side
    370.10x = 192,147.80
  5. Step 5: Solve for x
    x = 192,147.80/370.10
  6. Step 6: Final answer
    x = 519.18

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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.