Home / 389,619.20-584,487.20-164,979.20

Finding the Fourth Proportional to 389,619.20, 584,487.20 and 164,979.20

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Solution

The fourth proportional to 389,619.20, 584,487.20 and 164,979.20 is: 247,493.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,619.20 : 584,487.20 = 164,979.20 : x
  2. Step 2: Convert to fraction form
    389,619.20/584,487.20 = 164,979.20/x
  3. Step 3: Cross multiply
    389,619.20x = 584,487.20 × 164,979.20
  4. Step 4: Simplify right side
    389,619.20x = 96,428,230,666.24
  5. Step 5: Solve for x
    x = 96,428,230,666.24/389,619.20
  6. Step 6: Final answer
    x = 247,493.53

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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.