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Finding the Fourth Proportional to 245,899.80, 368,849.70 and 231,384.60

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Solution

The fourth proportional to 245,899.80, 368,849.70 and 231,384.60 is: 347,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,899.80 : 368,849.70 = 231,384.60 : x
  2. Step 2: Convert to fraction form
    245,899.80/368,849.70 = 231,384.60/x
  3. Step 3: Cross multiply
    245,899.80x = 368,849.70 × 231,384.60
  4. Step 4: Simplify right side
    245,899.80x = 85,346,140,294.62
  5. Step 5: Solve for x
    x = 85,346,140,294.62/245,899.80
  6. Step 6: Final answer
    x = 347,076.90

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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.