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Finding the Fourth Proportional to 219,838, 303,376.46 and 124,342.64

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Solution

The fourth proportional to 219,838, 303,376.46 and 124,342.64 is: 171,592.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,838 : 303,376.46 = 124,342.64 : x
  2. Step 2: Convert to fraction form
    219,838/303,376.46 = 124,342.64/x
  3. Step 3: Cross multiply
    219,838x = 303,376.46 × 124,342.64
  4. Step 4: Simplify right side
    219,838x = 37,722,629,950.25
  5. Step 5: Solve for x
    x = 37,722,629,950.25/219,838
  6. Step 6: Final answer
    x = 171,592.85

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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.