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Finding the Fourth Proportional to 207.36, 285.75 and 152.01

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Solution

The fourth proportional to 207.36, 285.75 and 152.01 is: 209.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    207.36 : 285.75 = 152.01 : x
  2. Step 2: Convert to fraction form
    207.36/285.75 = 152.01/x
  3. Step 3: Cross multiply
    207.36x = 285.75 × 152.01
  4. Step 4: Simplify right side
    207.36x = 43,436.86
  5. Step 5: Solve for x
    x = 43,436.86/207.36
  6. Step 6: Final answer
    x = 209.48

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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.