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Finding the Fourth Proportional to 465.77, 698.52 and 136.70

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Solution

The fourth proportional to 465.77, 698.52 and 136.70 is: 205.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.77 : 698.52 = 136.70 : x
  2. Step 2: Convert to fraction form
    465.77/698.52 = 136.70/x
  3. Step 3: Cross multiply
    465.77x = 698.52 × 136.70
  4. Step 4: Simplify right side
    465.77x = 95,484.19
  5. Step 5: Solve for x
    x = 95,484.19/465.77
  6. Step 6: Final answer
    x = 205.01

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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.