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Finding the Fourth Proportional to 152.23, 208.73 and 148.58

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Solution

The fourth proportional to 152.23, 208.73 and 148.58 is: 203.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.23 : 208.73 = 148.58 : x
  2. Step 2: Convert to fraction form
    152.23/208.73 = 148.58/x
  3. Step 3: Cross multiply
    152.23x = 208.73 × 148.58
  4. Step 4: Simplify right side
    152.23x = 31,013.10
  5. Step 5: Solve for x
    x = 31,013.10/152.23
  6. Step 6: Final answer
    x = 203.73

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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.