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Finding the Fourth Proportional to 435.23, 652.87 and 127.08

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Solution

The fourth proportional to 435.23, 652.87 and 127.08 is: 190.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.23 : 652.87 = 127.08 : x
  2. Step 2: Convert to fraction form
    435.23/652.87 = 127.08/x
  3. Step 3: Cross multiply
    435.23x = 652.87 × 127.08
  4. Step 4: Simplify right side
    435.23x = 82,966.72
  5. Step 5: Solve for x
    x = 82,966.72/435.23
  6. Step 6: Final answer
    x = 190.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.