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Finding the Fourth Proportional to 395.16, 589.29 and 376.53

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Solution

The fourth proportional to 395.16, 589.29 and 376.53 is: 561.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.16 : 589.29 = 376.53 : x
  2. Step 2: Convert to fraction form
    395.16/589.29 = 376.53/x
  3. Step 3: Cross multiply
    395.16x = 589.29 × 376.53
  4. Step 4: Simplify right side
    395.16x = 221,885.36
  5. Step 5: Solve for x
    x = 221,885.36/395.16
  6. Step 6: Final answer
    x = 561.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.