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Finding the Fourth Proportional to 305,466.57, 458,015.67 and 136,956.42

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Solution

The fourth proportional to 305,466.57, 458,015.67 and 136,956.42 is: 205,352.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,466.57 : 458,015.67 = 136,956.42 : x
  2. Step 2: Convert to fraction form
    305,466.57/458,015.67 = 136,956.42/x
  3. Step 3: Cross multiply
    305,466.57x = 458,015.67 × 136,956.42
  4. Step 4: Simplify right side
    305,466.57x = 62,728,186,467.10
  5. Step 5: Solve for x
    x = 62,728,186,467.10/305,466.57
  6. Step 6: Final answer
    x = 205,352.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.