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Finding the Fourth Proportional to 270.72, 373.58 and 152.71

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Solution

The fourth proportional to 270.72, 373.58 and 152.71 is: 210.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.72 : 373.58 = 152.71 : x
  2. Step 2: Convert to fraction form
    270.72/373.58 = 152.71/x
  3. Step 3: Cross multiply
    270.72x = 373.58 × 152.71
  4. Step 4: Simplify right side
    270.72x = 57,048.64
  5. Step 5: Solve for x
    x = 57,048.64/270.72
  6. Step 6: Final answer
    x = 210.73

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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.