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Finding the Fourth Proportional to 887.18, 1,224.81 and 533.19

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Solution

The fourth proportional to 887.18, 1,224.81 and 533.19 is: 736.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.18 : 1,224.81 = 533.19 : x
  2. Step 2: Convert to fraction form
    887.18/1,224.81 = 533.19/x
  3. Step 3: Cross multiply
    887.18x = 1,224.81 × 533.19
  4. Step 4: Simplify right side
    887.18x = 653,056.26
  5. Step 5: Solve for x
    x = 653,056.26/887.18
  6. Step 6: Final answer
    x = 736.10

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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.