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Finding the Fourth Proportional to 383,420.91, 575,131.37 and 117,182.19

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Solution

The fourth proportional to 383,420.91, 575,131.37 and 117,182.19 is: 175,773.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,420.91 : 575,131.37 = 117,182.19 : x
  2. Step 2: Convert to fraction form
    383,420.91/575,131.37 = 117,182.19/x
  3. Step 3: Cross multiply
    383,420.91x = 575,131.37 × 117,182.19
  4. Step 4: Simplify right side
    383,420.91x = 67,395,152,888.39
  5. Step 5: Solve for x
    x = 67,395,152,888.39/383,420.91
  6. Step 6: Final answer
    x = 175,773.29

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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.