Home / 389,828.64-584,976.21-168,212.64

Finding the Fourth Proportional to 389,828.64, 584,976.21 and 168,212.64

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Solution

The fourth proportional to 389,828.64, 584,976.21 and 168,212.64 is: 252,419.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,828.64 : 584,976.21 = 168,212.64 : x
  2. Step 2: Convert to fraction form
    389,828.64/584,976.21 = 168,212.64/x
  3. Step 3: Cross multiply
    389,828.64x = 584,976.21 × 168,212.64
  4. Step 4: Simplify right side
    389,828.64x = 98,400,392,621.29
  5. Step 5: Solve for x
    x = 98,400,392,621.29/389,828.64
  6. Step 6: Final answer
    x = 252,419.61

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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.