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Finding the Fourth Proportional to 219,871.32, 303,422.52 and 124,375.98

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Solution

The fourth proportional to 219,871.32, 303,422.52 and 124,375.98 is: 171,638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,871.32 : 303,422.52 = 124,375.98 : x
  2. Step 2: Convert to fraction form
    219,871.32/303,422.52 = 124,375.98/x
  3. Step 3: Cross multiply
    219,871.32x = 303,422.52 × 124,375.98
  4. Step 4: Simplify right side
    219,871.32x = 37,738,473,279.07
  5. Step 5: Solve for x
    x = 37,738,473,279.07/219,871.32
  6. Step 6: Final answer
    x = 171,638.91

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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.