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Finding the Fourth Proportional to 652,171.10, 978,256.65 and 231,392.30

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Solution

The fourth proportional to 652,171.10, 978,256.65 and 231,392.30 is: 347,088.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,171.10 : 978,256.65 = 231,392.30 : x
  2. Step 2: Convert to fraction form
    652,171.10/978,256.65 = 231,392.30/x
  3. Step 3: Cross multiply
    652,171.10x = 978,256.65 × 231,392.30
  4. Step 4: Simplify right side
    652,171.10x = 226,361,056,233.80
  5. Step 5: Solve for x
    x = 226,361,056,233.80/652,171.10
  6. Step 6: Final answer
    x = 347,088.45

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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.