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Finding the Fourth Proportional to 152.66, 210.62 and 106.06

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Solution

The fourth proportional to 152.66, 210.62 and 106.06 is: 146.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.66 : 210.62 = 106.06 : x
  2. Step 2: Convert to fraction form
    152.66/210.62 = 106.06/x
  3. Step 3: Cross multiply
    152.66x = 210.62 × 106.06
  4. Step 4: Simplify right side
    152.66x = 22,338.36
  5. Step 5: Solve for x
    x = 22,338.36/152.66
  6. Step 6: Final answer
    x = 146.33

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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.