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Finding the Fourth Proportional to 352,654.80, 486,669.27 and 199,688.85

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Solution

The fourth proportional to 352,654.80, 486,669.27 and 199,688.85 is: 275,573.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,654.80 : 486,669.27 = 199,688.85 : x
  2. Step 2: Convert to fraction form
    352,654.80/486,669.27 = 199,688.85/x
  3. Step 3: Cross multiply
    352,654.80x = 486,669.27 × 199,688.85
  4. Step 4: Simplify right side
    352,654.80x = 97,182,426,856.64
  5. Step 5: Solve for x
    x = 97,182,426,856.64/352,654.80
  6. Step 6: Final answer
    x = 275,573.81

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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.