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Finding the Fourth Proportional to 392,682.23, 541,842.45 and 220,567.23

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Solution

The fourth proportional to 392,682.23, 541,842.45 and 220,567.23 is: 304,349.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,682.23 : 541,842.45 = 220,567.23 : x
  2. Step 2: Convert to fraction form
    392,682.23/541,842.45 = 220,567.23/x
  3. Step 3: Cross multiply
    392,682.23x = 541,842.45 × 220,567.23
  4. Step 4: Simplify right side
    392,682.23x = 119,512,688,292.91
  5. Step 5: Solve for x
    x = 119,512,688,292.91/392,682.23
  6. Step 6: Final answer
    x = 304,349.62

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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.