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Finding the Fourth Proportional to 207,791.63, 311,705.10 and 65,598.86

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Solution

The fourth proportional to 207,791.63, 311,705.10 and 65,598.86 is: 98,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,791.63 : 311,705.10 = 65,598.86 : x
  2. Step 2: Convert to fraction form
    207,791.63/311,705.10 = 65,598.86/x
  3. Step 3: Cross multiply
    207,791.63x = 311,705.10 × 65,598.86
  4. Step 4: Simplify right side
    207,791.63x = 20,447,497,657.66
  5. Step 5: Solve for x
    x = 20,447,497,657.66/207,791.63
  6. Step 6: Final answer
    x = 98,403.86

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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.