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Finding the Fourth Proportional to 207,287.76, 310,941.36 and 67,057.32

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Solution

The fourth proportional to 207,287.76, 310,941.36 and 67,057.32 is: 100,589.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,287.76 : 310,941.36 = 67,057.32 : x
  2. Step 2: Convert to fraction form
    207,287.76/310,941.36 = 67,057.32/x
  3. Step 3: Cross multiply
    207,287.76x = 310,941.36 × 67,057.32
  4. Step 4: Simplify right side
    207,287.76x = 20,850,894,278.76
  5. Step 5: Solve for x
    x = 20,850,894,278.76/207,287.76
  6. Step 6: Final answer
    x = 100,589.12

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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.