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Finding the Fourth Proportional to 652,110.60, 978,165.90 and 231,331.80

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Solution

The fourth proportional to 652,110.60, 978,165.90 and 231,331.80 is: 346,997.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,110.60 : 978,165.90 = 231,331.80 : x
  2. Step 2: Convert to fraction form
    652,110.60/978,165.90 = 231,331.80/x
  3. Step 3: Cross multiply
    652,110.60x = 978,165.90 × 231,331.80
  4. Step 4: Simplify right side
    652,110.60x = 226,280,878,345.62
  5. Step 5: Solve for x
    x = 226,280,878,345.62/652,110.60
  6. Step 6: Final answer
    x = 346,997.70

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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.