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Finding the Fourth Proportional to 331,351.70, 497,027.55 and 309,044.30

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Solution

The fourth proportional to 331,351.70, 497,027.55 and 309,044.30 is: 463,566.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,351.70 : 497,027.55 = 309,044.30 : x
  2. Step 2: Convert to fraction form
    331,351.70/497,027.55 = 309,044.30/x
  3. Step 3: Cross multiply
    331,351.70x = 497,027.55 × 309,044.30
  4. Step 4: Simplify right side
    331,351.70x = 153,603,531,270.47
  5. Step 5: Solve for x
    x = 153,603,531,270.47/331,351.70
  6. Step 6: Final answer
    x = 463,566.45

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Similar ratio
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1.5x scale

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.