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Finding the Fourth Proportional to 305,351.98, 457,894.32 and 125,313.94

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Solution

The fourth proportional to 305,351.98, 457,894.32 and 125,313.94 is: 187,916.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,351.98 : 457,894.32 = 125,313.94 : x
  2. Step 2: Convert to fraction form
    305,351.98/457,894.32 = 125,313.94/x
  3. Step 3: Cross multiply
    305,351.98x = 457,894.32 × 125,313.94
  4. Step 4: Simplify right side
    305,351.98x = 57,380,541,342.82
  5. Step 5: Solve for x
    x = 57,380,541,342.82/305,351.98
  6. Step 6: Final answer
    x = 187,916.06

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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.