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Finding the Fourth Proportional to 371, 511.62 and 336.12

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Solution

The fourth proportional to 371, 511.62 and 336.12 is: 463.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    371 : 511.62 = 336.12 : x
  2. Step 2: Convert to fraction form
    371/511.62 = 336.12/x
  3. Step 3: Cross multiply
    371x = 511.62 × 336.12
  4. Step 4: Simplify right side
    371x = 171,965.71
  5. Step 5: Solve for x
    x = 171,965.71/371
  6. Step 6: Final answer
    x = 463.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.