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Finding the Fourth Proportional to 197,256.80, 295,447.80 and 78,867.20

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Solution

The fourth proportional to 197,256.80, 295,447.80 and 78,867.20 is: 118,125.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,256.80 : 295,447.80 = 78,867.20 : x
  2. Step 2: Convert to fraction form
    197,256.80/295,447.80 = 78,867.20/x
  3. Step 3: Cross multiply
    197,256.80x = 295,447.80 × 78,867.20
  4. Step 4: Simplify right side
    197,256.80x = 23,301,140,732.16
  5. Step 5: Solve for x
    x = 23,301,140,732.16/197,256.80
  6. Step 6: Final answer
    x = 118,125.92

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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.