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Finding the Fourth Proportional to 383,809.95, 575,714.39 and 103,327.47

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Solution

The fourth proportional to 383,809.95, 575,714.39 and 103,327.47 is: 154,991.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,809.95 : 575,714.39 = 103,327.47 : x
  2. Step 2: Convert to fraction form
    383,809.95/575,714.39 = 103,327.47/x
  3. Step 3: Cross multiply
    383,809.95x = 575,714.39 × 103,327.47
  4. Step 4: Simplify right side
    383,809.95x = 59,487,110,844.66
  5. Step 5: Solve for x
    x = 59,487,110,844.66/383,809.95
  6. Step 6: Final answer
    x = 154,991.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.