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Finding the Fourth Proportional to 305,587.52, 421,665.81 and 169,622.48

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Solution

The fourth proportional to 305,587.52, 421,665.81 and 169,622.48 is: 234,054.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,587.52 : 421,665.81 = 169,622.48 : x
  2. Step 2: Convert to fraction form
    305,587.52/421,665.81 = 169,622.48/x
  3. Step 3: Cross multiply
    305,587.52x = 421,665.81 × 169,622.48
  4. Step 4: Simplify right side
    305,587.52x = 71,523,998,315.08
  5. Step 5: Solve for x
    x = 71,523,998,315.08/305,587.52
  6. Step 6: Final answer
    x = 234,054.06

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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.