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Finding the Fourth Proportional to 288,365.86, 397,945.74 and 161,046.28

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Solution

The fourth proportional to 288,365.86, 397,945.74 and 161,046.28 is: 222,244.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,365.86 : 397,945.74 = 161,046.28 : x
  2. Step 2: Convert to fraction form
    288,365.86/397,945.74 = 161,046.28/x
  3. Step 3: Cross multiply
    288,365.86x = 397,945.74 × 161,046.28
  4. Step 4: Simplify right side
    288,365.86x = 64,087,681,068.85
  5. Step 5: Solve for x
    x = 64,087,681,068.85/288,365.86
  6. Step 6: Final answer
    x = 222,244.34

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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.