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Finding the Fourth Proportional to 153.24, 210.09 and 150.51

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Solution

The fourth proportional to 153.24, 210.09 and 150.51 is: 206.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.24 : 210.09 = 150.51 : x
  2. Step 2: Convert to fraction form
    153.24/210.09 = 150.51/x
  3. Step 3: Cross multiply
    153.24x = 210.09 × 150.51
  4. Step 4: Simplify right side
    153.24x = 31,620.65
  5. Step 5: Solve for x
    x = 31,620.65/153.24
  6. Step 6: Final answer
    x = 206.35

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.