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Finding the Fourth Proportional to 152.95, 210.94 and 134.49

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Solution

The fourth proportional to 152.95, 210.94 and 134.49 is: 185.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.95 : 210.94 = 134.49 : x
  2. Step 2: Convert to fraction form
    152.95/210.94 = 134.49/x
  3. Step 3: Cross multiply
    152.95x = 210.94 × 134.49
  4. Step 4: Simplify right side
    152.95x = 28,368.27
  5. Step 5: Solve for x
    x = 28,368.27/152.95
  6. Step 6: Final answer
    x = 185.48

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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.