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Finding the Fourth Proportional to 141.13, 210.37 and 134.98

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Solution

The fourth proportional to 141.13, 210.37 and 134.98 is: 201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.13 : 210.37 = 134.98 : x
  2. Step 2: Convert to fraction form
    141.13/210.37 = 134.98/x
  3. Step 3: Cross multiply
    141.13x = 210.37 × 134.98
  4. Step 4: Simplify right side
    141.13x = 28,395.74
  5. Step 5: Solve for x
    x = 28,395.74/141.13
  6. Step 6: Final answer
    x = 201.20

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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.