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Finding the Fourth Proportional to 375,425.61, 518,124.50 and 214,304.88

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Solution

The fourth proportional to 375,425.61, 518,124.50 and 214,304.88 is: 295,761.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,425.61 : 518,124.50 = 214,304.88 : x
  2. Step 2: Convert to fraction form
    375,425.61/518,124.50 = 214,304.88/x
  3. Step 3: Cross multiply
    375,425.61x = 518,124.50 × 214,304.88
  4. Step 4: Simplify right side
    375,425.61x = 111,036,608,797.56
  5. Step 5: Solve for x
    x = 111,036,608,797.56/375,425.61
  6. Step 6: Final answer
    x = 295,761.95

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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.