Home / 389,491.20-584,170.56-108,943.20

Finding the Fourth Proportional to 389,491.20, 584,170.56 and 108,943.20

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Solution

The fourth proportional to 389,491.20, 584,170.56 and 108,943.20 is: 163,396.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,491.20 : 584,170.56 = 108,943.20 : x
  2. Step 2: Convert to fraction form
    389,491.20/584,170.56 = 108,943.20/x
  3. Step 3: Cross multiply
    389,491.20x = 584,170.56 × 108,943.20
  4. Step 4: Simplify right side
    389,491.20x = 63,641,410,152.19
  5. Step 5: Solve for x
    x = 63,641,410,152.19/389,491.20
  6. Step 6: Final answer
    x = 163,396.27

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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.