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Finding the Fourth Proportional to 180,361.58, 270,542.11 and 72,339.68

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Solution

The fourth proportional to 180,361.58, 270,542.11 and 72,339.68 is: 108,509.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,361.58 : 270,542.11 = 72,339.68 : x
  2. Step 2: Convert to fraction form
    180,361.58/270,542.11 = 72,339.68/x
  3. Step 3: Cross multiply
    180,361.58x = 270,542.11 × 72,339.68
  4. Step 4: Simplify right side
    180,361.58x = 19,570,929,663.92
  5. Step 5: Solve for x
    x = 19,570,929,663.92/180,361.58
  6. Step 6: Final answer
    x = 108,509.42

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1.5x scale

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.