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Finding the Fourth Proportional to 176.63, 265.06 and 89.99

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Solution

The fourth proportional to 176.63, 265.06 and 89.99 is: 135.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.63 : 265.06 = 89.99 : x
  2. Step 2: Convert to fraction form
    176.63/265.06 = 89.99/x
  3. Step 3: Cross multiply
    176.63x = 265.06 × 89.99
  4. Step 4: Simplify right side
    176.63x = 23,852.75
  5. Step 5: Solve for x
    x = 23,852.75/176.63
  6. Step 6: Final answer
    x = 135.04

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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.