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Finding the Fourth Proportional to 375,451.98, 518,046.08 and 214,359.45

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Solution

The fourth proportional to 375,451.98, 518,046.08 and 214,359.45 is: 295,771.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,451.98 : 518,046.08 = 214,359.45 : x
  2. Step 2: Convert to fraction form
    375,451.98/518,046.08 = 214,359.45/x
  3. Step 3: Cross multiply
    375,451.98x = 518,046.08 × 214,359.45
  4. Step 4: Simplify right side
    375,451.98x = 111,048,071,711.66
  5. Step 5: Solve for x
    x = 111,048,071,711.66/375,451.98
  6. Step 6: Final answer
    x = 295,771.70

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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.