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Finding the Fourth Proportional to 354,627.82, 531,621.19 and 240,813.60

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Solution

The fourth proportional to 354,627.82, 531,621.19 and 240,813.60 is: 361,002.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,627.82 : 531,621.19 = 240,813.60 : x
  2. Step 2: Convert to fraction form
    354,627.82/531,621.19 = 240,813.60/x
  3. Step 3: Cross multiply
    354,627.82x = 531,621.19 × 240,813.60
  4. Step 4: Simplify right side
    354,627.82x = 128,021,611,396.12
  5. Step 5: Solve for x
    x = 128,021,611,396.12/354,627.82
  6. Step 6: Final answer
    x = 361,002.74

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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.