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Finding the Fourth Proportional to 230,504.64, 345,756.94 and 72,745.39

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Solution

The fourth proportional to 230,504.64, 345,756.94 and 72,745.39 is: 109,118.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,504.64 : 345,756.94 = 72,745.39 : x
  2. Step 2: Convert to fraction form
    230,504.64/345,756.94 = 72,745.39/x
  3. Step 3: Cross multiply
    230,504.64x = 345,756.94 × 72,745.39
  4. Step 4: Simplify right side
    230,504.64x = 25,152,223,695.84
  5. Step 5: Solve for x
    x = 25,152,223,695.84/230,504.64
  6. Step 6: Final answer
    x = 109,118.08

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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.