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Finding the Fourth Proportional to 344,145.60, 515,181.60 and 306,820.80

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Solution

The fourth proportional to 344,145.60, 515,181.60 and 306,820.80 is: 459,306.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,145.60 : 515,181.60 = 306,820.80 : x
  2. Step 2: Convert to fraction form
    344,145.60/515,181.60 = 306,820.80/x
  3. Step 3: Cross multiply
    344,145.60x = 515,181.60 × 306,820.80
  4. Step 4: Simplify right side
    344,145.60x = 158,068,430,657.28
  5. Step 5: Solve for x
    x = 158,068,430,657.28/344,145.60
  6. Step 6: Final answer
    x = 459,306.85

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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.