Home / 207,905.40-311,865.30-65,752.20

Finding the Fourth Proportional to 207,905.40, 311,865.30 and 65,752.20

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Solution

The fourth proportional to 207,905.40, 311,865.30 and 65,752.20 is: 98,630.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,905.40 : 311,865.30 = 65,752.20 : x
  2. Step 2: Convert to fraction form
    207,905.40/311,865.30 = 65,752.20/x
  3. Step 3: Cross multiply
    207,905.40x = 311,865.30 × 65,752.20
  4. Step 4: Simplify right side
    207,905.40x = 20,505,829,578.66
  5. Step 5: Solve for x
    x = 20,505,829,578.66/207,905.40
  6. Step 6: Final answer
    x = 98,630.58

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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.