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Finding the Fourth Proportional to 360,837.60, 540,219.60 and 323,512.80

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Solution

The fourth proportional to 360,837.60, 540,219.60 and 323,512.80 is: 484,339.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,837.60 : 540,219.60 = 323,512.80 : x
  2. Step 2: Convert to fraction form
    360,837.60/540,219.60 = 323,512.80/x
  3. Step 3: Cross multiply
    360,837.60x = 540,219.60 × 323,512.80
  4. Step 4: Simplify right side
    360,837.60x = 174,767,955,410.88
  5. Step 5: Solve for x
    x = 174,767,955,410.88/360,837.60
  6. Step 6: Final answer
    x = 484,339.65

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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.