Home / 288,622.49-398,316.71-161,308.25

Finding the Fourth Proportional to 288,622.49, 398,316.71 and 161,308.25

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Solution

The fourth proportional to 288,622.49, 398,316.71 and 161,308.25 is: 222,615.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,622.49 : 398,316.71 = 161,308.25 : x
  2. Step 2: Convert to fraction form
    288,622.49/398,316.71 = 161,308.25/x
  3. Step 3: Cross multiply
    288,622.49x = 398,316.71 × 161,308.25
  4. Step 4: Simplify right side
    288,622.49x = 64,251,769,847.54
  5. Step 5: Solve for x
    x = 64,251,769,847.54/288,622.49
  6. Step 6: Final answer
    x = 222,615.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.