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Finding the Fourth Proportional to 478,820.10, 717,902.10 and 226,221.60

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Solution

The fourth proportional to 478,820.10, 717,902.10 and 226,221.60 is: 339,177.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,820.10 : 717,902.10 = 226,221.60 : x
  2. Step 2: Convert to fraction form
    478,820.10/717,902.10 = 226,221.60/x
  3. Step 3: Cross multiply
    478,820.10x = 717,902.10 × 226,221.60
  4. Step 4: Simplify right side
    478,820.10x = 162,404,961,705.36
  5. Step 5: Solve for x
    x = 162,404,961,705.36/478,820.10
  6. Step 6: Final answer
    x = 339,177.41

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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.