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Finding the Fourth Proportional to 375,589.48, 518,327.46 and 214,445.80

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Solution

The fourth proportional to 375,589.48, 518,327.46 and 214,445.80 is: 295,943.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,589.48 : 518,327.46 = 214,445.80 : x
  2. Step 2: Convert to fraction form
    375,589.48/518,327.46 = 214,445.80/x
  3. Step 3: Cross multiply
    375,589.48x = 518,327.46 × 214,445.80
  4. Step 4: Simplify right side
    375,589.48x = 111,153,146,821.67
  5. Step 5: Solve for x
    x = 111,153,146,821.67/375,589.48
  6. Step 6: Final answer
    x = 295,943.18

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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.