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Finding the Fourth Proportional to 350,645.76, 525,813.12 and 217,520.64

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Solution

The fourth proportional to 350,645.76, 525,813.12 and 217,520.64 is: 326,184.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,645.76 : 525,813.12 = 217,520.64 : x
  2. Step 2: Convert to fraction form
    350,645.76/525,813.12 = 217,520.64/x
  3. Step 3: Cross multiply
    350,645.76x = 525,813.12 × 217,520.64
  4. Step 4: Simplify right side
    350,645.76x = 114,375,206,382.80
  5. Step 5: Solve for x
    x = 114,375,206,382.80/350,645.76
  6. Step 6: Final answer
    x = 326,184.48

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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.