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Finding the Fourth Proportional to 350,511.30, 525,766.95 and 347,400.90

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Solution

The fourth proportional to 350,511.30, 525,766.95 and 347,400.90 is: 521,101.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,511.30 : 525,766.95 = 347,400.90 : x
  2. Step 2: Convert to fraction form
    350,511.30/525,766.95 = 347,400.90/x
  3. Step 3: Cross multiply
    350,511.30x = 525,766.95 × 347,400.90
  4. Step 4: Simplify right side
    350,511.30x = 182,651,911,620.26
  5. Step 5: Solve for x
    x = 182,651,911,620.26/350,511.30
  6. Step 6: Final answer
    x = 521,101.35

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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.