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Finding the Fourth Proportional to 880.12, 1,214.08 and 548.83

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Solution

The fourth proportional to 880.12, 1,214.08 and 548.83 is: 757.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.12 : 1,214.08 = 548.83 : x
  2. Step 2: Convert to fraction form
    880.12/1,214.08 = 548.83/x
  3. Step 3: Cross multiply
    880.12x = 1,214.08 × 548.83
  4. Step 4: Simplify right side
    880.12x = 666,323.53
  5. Step 5: Solve for x
    x = 666,323.53/880.12
  6. Step 6: Final answer
    x = 757.08

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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.