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Finding the Fourth Proportional to 207,325.40, 310,988.10 and 67,080.56

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Solution

The fourth proportional to 207,325.40, 310,988.10 and 67,080.56 is: 100,620.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,325.40 : 310,988.10 = 67,080.56 : x
  2. Step 2: Convert to fraction form
    207,325.40/310,988.10 = 67,080.56/x
  3. Step 3: Cross multiply
    207,325.40x = 310,988.10 × 67,080.56
  4. Step 4: Simplify right side
    207,325.40x = 20,861,255,901.34
  5. Step 5: Solve for x
    x = 20,861,255,901.34/207,325.40
  6. Step 6: Final answer
    x = 100,620.84

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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.