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Finding the Fourth Proportional to 336, 504 and 130.68

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Solution

The fourth proportional to 336, 504 and 130.68 is: 196.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    336 : 504 = 130.68 : x
  2. Step 2: Convert to fraction form
    336/504 = 130.68/x
  3. Step 3: Cross multiply
    336x = 504 × 130.68
  4. Step 4: Simplify right side
    336x = 65,862.72
  5. Step 5: Solve for x
    x = 65,862.72/336
  6. Step 6: Final answer
    x = 196.02

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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.