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Finding the Fourth Proportional to 556.04, 834.09 and 145.18

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Solution

The fourth proportional to 556.04, 834.09 and 145.18 is: 217.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.04 : 834.09 = 145.18 : x
  2. Step 2: Convert to fraction form
    556.04/834.09 = 145.18/x
  3. Step 3: Cross multiply
    556.04x = 834.09 × 145.18
  4. Step 4: Simplify right side
    556.04x = 121,091.10
  5. Step 5: Solve for x
    x = 121,091.10/556.04
  6. Step 6: Final answer
    x = 217.77

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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.