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Finding the Fourth Proportional to 243,879.27, 365,821.98 and 85,997.01

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Solution

The fourth proportional to 243,879.27, 365,821.98 and 85,997.01 is: 128,996.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,879.27 : 365,821.98 = 85,997.01 : x
  2. Step 2: Convert to fraction form
    243,879.27/365,821.98 = 85,997.01/x
  3. Step 3: Cross multiply
    243,879.27x = 365,821.98 × 85,997.01
  4. Step 4: Simplify right side
    243,879.27x = 31,459,596,472.28
  5. Step 5: Solve for x
    x = 31,459,596,472.28/243,879.27
  6. Step 6: Final answer
    x = 128,996.60

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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.