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Finding the Fourth Proportional to 208,598.06, 312,793.46 and 66,424.77

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Solution

The fourth proportional to 208,598.06, 312,793.46 and 66,424.77 is: 99,604.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,598.06 : 312,793.46 = 66,424.77 : x
  2. Step 2: Convert to fraction form
    208,598.06/312,793.46 = 66,424.77/x
  3. Step 3: Cross multiply
    208,598.06x = 312,793.46 × 66,424.77
  4. Step 4: Simplify right side
    208,598.06x = 20,777,233,305.88
  5. Step 5: Solve for x
    x = 20,777,233,305.88/208,598.06
  6. Step 6: Final answer
    x = 99,604.16

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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.