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Finding the Fourth Proportional to 305,466.44, 421,523.43 and 169,491.77

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Solution

The fourth proportional to 305,466.44, 421,523.43 and 169,491.77 is: 233,887.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,466.44 : 421,523.43 = 169,491.77 : x
  2. Step 2: Convert to fraction form
    305,466.44/421,523.43 = 169,491.77/x
  3. Step 3: Cross multiply
    305,466.44x = 421,523.43 × 169,491.77
  4. Step 4: Simplify right side
    305,466.44x = 71,444,752,247.17
  5. Step 5: Solve for x
    x = 71,444,752,247.17/305,466.44
  6. Step 6: Final answer
    x = 233,887.40

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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.