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Finding the Fourth Proportional to 344,511.30, 515,600.55 and 302,520.90

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Solution

The fourth proportional to 344,511.30, 515,600.55 and 302,520.90 is: 452,757.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,511.30 : 515,600.55 = 302,520.90 : x
  2. Step 2: Convert to fraction form
    344,511.30/515,600.55 = 302,520.90/x
  3. Step 3: Cross multiply
    344,511.30x = 515,600.55 × 302,520.90
  4. Step 4: Simplify right side
    344,511.30x = 155,979,942,426.50
  5. Step 5: Solve for x
    x = 155,979,942,426.50/344,511.30
  6. Step 6: Final answer
    x = 452,757.12

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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.