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Finding the Fourth Proportional to 245,864.60, 368,796.90 and 79,652.60

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Solution

The fourth proportional to 245,864.60, 368,796.90 and 79,652.60 is: 119,478.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,864.60 : 368,796.90 = 79,652.60 : x
  2. Step 2: Convert to fraction form
    245,864.60/368,796.90 = 79,652.60/x
  3. Step 3: Cross multiply
    245,864.60x = 368,796.90 × 79,652.60
  4. Step 4: Simplify right side
    245,864.60x = 29,375,631,956.94
  5. Step 5: Solve for x
    x = 29,375,631,956.94/245,864.60
  6. Step 6: Final answer
    x = 119,478.90

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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.