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Finding the Fourth Proportional to 370.89, 556.71 and 369.18

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Solution

The fourth proportional to 370.89, 556.71 and 369.18 is: 554.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.89 : 556.71 = 369.18 : x
  2. Step 2: Convert to fraction form
    370.89/556.71 = 369.18/x
  3. Step 3: Cross multiply
    370.89x = 556.71 × 369.18
  4. Step 4: Simplify right side
    370.89x = 205,526.20
  5. Step 5: Solve for x
    x = 205,526.20/370.89
  6. Step 6: Final answer
    x = 554.14

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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.