Home / 354,621.87-531,893.39-126,908.30

Finding the Fourth Proportional to 354,621.87, 531,893.39 and 126,908.30

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Solution

The fourth proportional to 354,621.87, 531,893.39 and 126,908.30 is: 190,348.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,621.87 : 531,893.39 = 126,908.30 : x
  2. Step 2: Convert to fraction form
    354,621.87/531,893.39 = 126,908.30/x
  3. Step 3: Cross multiply
    354,621.87x = 531,893.39 × 126,908.30
  4. Step 4: Simplify right side
    354,621.87x = 67,501,686,421.23
  5. Step 5: Solve for x
    x = 67,501,686,421.23/354,621.87
  6. Step 6: Final answer
    x = 190,348.34

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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.