Home / 207,984.12-311,155.32-157,528.49

Finding the Fourth Proportional to 207,984.12, 311,155.32 and 157,528.49

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Solution

The fourth proportional to 207,984.12, 311,155.32 and 157,528.49 is: 235,671.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,984.12 : 311,155.32 = 157,528.49 : x
  2. Step 2: Convert to fraction form
    207,984.12/311,155.32 = 157,528.49/x
  3. Step 3: Cross multiply
    207,984.12x = 311,155.32 × 157,528.49
  4. Step 4: Simplify right side
    207,984.12x = 49,015,828,305.80
  5. Step 5: Solve for x
    x = 49,015,828,305.80/207,984.12
  6. Step 6: Final answer
    x = 235,671.02

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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.