Home / 207,869.20-311,803.80-144,883.60

Finding the Fourth Proportional to 207,869.20, 311,803.80 and 144,883.60

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Solution

The fourth proportional to 207,869.20, 311,803.80 and 144,883.60 is: 217,325.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,869.20 : 311,803.80 = 144,883.60 : x
  2. Step 2: Convert to fraction form
    207,869.20/311,803.80 = 144,883.60/x
  3. Step 3: Cross multiply
    207,869.20x = 311,803.80 × 144,883.60
  4. Step 4: Simplify right side
    207,869.20x = 45,175,257,037.68
  5. Step 5: Solve for x
    x = 45,175,257,037.68/207,869.20
  6. Step 6: Final answer
    x = 217,325.40

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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.