Home / 288,622.61-398,316.89-161,308.37

Finding the Fourth Proportional to 288,622.61, 398,316.89 and 161,308.37

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Solution

The fourth proportional to 288,622.61, 398,316.89 and 161,308.37 is: 222,615.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,622.61 : 398,316.89 = 161,308.37 : x
  2. Step 2: Convert to fraction form
    288,622.61/398,316.89 = 161,308.37/x
  3. Step 3: Cross multiply
    288,622.61x = 398,316.89 × 161,308.37
  4. Step 4: Simplify right side
    288,622.61x = 64,251,848,269.37
  5. Step 5: Solve for x
    x = 64,251,848,269.37/288,622.61
  6. Step 6: Final answer
    x = 222,615.44

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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.