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Finding the Fourth Proportional to 176.52, 242.99 and 152.88

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Solution

The fourth proportional to 176.52, 242.99 and 152.88 is: 210.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.52 : 242.99 = 152.88 : x
  2. Step 2: Convert to fraction form
    176.52/242.99 = 152.88/x
  3. Step 3: Cross multiply
    176.52x = 242.99 × 152.88
  4. Step 4: Simplify right side
    176.52x = 37,149.44
  5. Step 5: Solve for x
    x = 37,149.44/176.52
  6. Step 6: Final answer
    x = 210.45

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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.