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Finding the Fourth Proportional to 217,880.70, 304,410.90 and 217,880.70

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Solution

The fourth proportional to 217,880.70, 304,410.90 and 217,880.70 is: 304,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,880.70 : 304,410.90 = 217,880.70 : x
  2. Step 2: Convert to fraction form
    217,880.70/304,410.90 = 217,880.70/x
  3. Step 3: Cross multiply
    217,880.70x = 304,410.90 × 217,880.70
  4. Step 4: Simplify right side
    217,880.70x = 66,325,259,979.63
  5. Step 5: Solve for x
    x = 66,325,259,979.63/217,880.70
  6. Step 6: Final answer
    x = 304,410.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.