Home / 207,638.20-311,457.30-203,701.60

Finding the Fourth Proportional to 207,638.20, 311,457.30 and 203,701.60

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Solution

The fourth proportional to 207,638.20, 311,457.30 and 203,701.60 is: 305,552.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,638.20 : 311,457.30 = 203,701.60 : x
  2. Step 2: Convert to fraction form
    207,638.20/311,457.30 = 203,701.60/x
  3. Step 3: Cross multiply
    207,638.20x = 311,457.30 × 203,701.60
  4. Step 4: Simplify right side
    207,638.20x = 63,444,350,341.68
  5. Step 5: Solve for x
    x = 63,444,350,341.68/207,638.20
  6. Step 6: Final answer
    x = 305,552.40

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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.