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Finding the Fourth Proportional to 352,385.61, 486,285.22 and 199,420.96

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Solution

The fourth proportional to 352,385.61, 486,285.22 and 199,420.96 is: 275,197.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,385.61 : 486,285.22 = 199,420.96 : x
  2. Step 2: Convert to fraction form
    352,385.61/486,285.22 = 199,420.96/x
  3. Step 3: Cross multiply
    352,385.61x = 486,285.22 × 199,420.96
  4. Step 4: Simplify right side
    352,385.61x = 96,975,465,406.21
  5. Step 5: Solve for x
    x = 96,975,465,406.21/352,385.61
  6. Step 6: Final answer
    x = 275,197.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.