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Finding the Fourth Proportional to 361,996.80, 542,995.20 and 165,004.80

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Solution

The fourth proportional to 361,996.80, 542,995.20 and 165,004.80 is: 247,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,996.80 : 542,995.20 = 165,004.80 : x
  2. Step 2: Convert to fraction form
    361,996.80/542,995.20 = 165,004.80/x
  3. Step 3: Cross multiply
    361,996.80x = 542,995.20 × 165,004.80
  4. Step 4: Simplify right side
    361,996.80x = 89,596,814,376.96
  5. Step 5: Solve for x
    x = 89,596,814,376.96/361,996.80
  6. Step 6: Final answer
    x = 247,507.20

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1.5x scale

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.