Home / 412,247.04-618,340.32-131,688.96

Finding the Fourth Proportional to 412,247.04, 618,340.32 and 131,688.96

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Solution

The fourth proportional to 412,247.04, 618,340.32 and 131,688.96 is: 197,523.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,247.04 : 618,340.32 = 131,688.96 : x
  2. Step 2: Convert to fraction form
    412,247.04/618,340.32 = 131,688.96/x
  3. Step 3: Cross multiply
    412,247.04x = 618,340.32 × 131,688.96
  4. Step 4: Simplify right side
    412,247.04x = 81,428,593,666.87
  5. Step 5: Solve for x
    x = 81,428,593,666.87/412,247.04
  6. Step 6: Final answer
    x = 197,523.78

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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.