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Finding the Fourth Proportional to 295,639.88, 407,984.85 and 161,503.88

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Solution

The fourth proportional to 295,639.88, 407,984.85 and 161,503.88 is: 222,876.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,639.88 : 407,984.85 = 161,503.88 : x
  2. Step 2: Convert to fraction form
    295,639.88/407,984.85 = 161,503.88/x
  3. Step 3: Cross multiply
    295,639.88x = 407,984.85 × 161,503.88
  4. Step 4: Simplify right side
    295,639.88x = 65,891,134,216.29
  5. Step 5: Solve for x
    x = 65,891,134,216.29/295,639.88
  6. Step 6: Final answer
    x = 222,876.34

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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.