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Finding the Fourth Proportional to 384,081.40, 576,122.10 and 243,998.20

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Solution

The fourth proportional to 384,081.40, 576,122.10 and 243,998.20 is: 365,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,081.40 : 576,122.10 = 243,998.20 : x
  2. Step 2: Convert to fraction form
    384,081.40/576,122.10 = 243,998.20/x
  3. Step 3: Cross multiply
    384,081.40x = 576,122.10 × 243,998.20
  4. Step 4: Simplify right side
    384,081.40x = 140,572,755,380.22
  5. Step 5: Solve for x
    x = 140,572,755,380.22/384,081.40
  6. Step 6: Final answer
    x = 365,997.30

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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.