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Finding the Fourth Proportional to 305,466.19, 421,523.08 and 169,491.52

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Solution

The fourth proportional to 305,466.19, 421,523.08 and 169,491.52 is: 233,887.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,466.19 : 421,523.08 = 169,491.52 : x
  2. Step 2: Convert to fraction form
    305,466.19/421,523.08 = 169,491.52/x
  3. Step 3: Cross multiply
    305,466.19x = 421,523.08 × 169,491.52
  4. Step 4: Simplify right side
    305,466.19x = 71,444,587,544.28
  5. Step 5: Solve for x
    x = 71,444,587,544.28/305,466.19
  6. Step 6: Final answer
    x = 233,887.05

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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.