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Finding the Fourth Proportional to 274,977.60, 384,139.20 and 274,977.60

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Solution

The fourth proportional to 274,977.60, 384,139.20 and 274,977.60 is: 384,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,977.60 : 384,139.20 = 274,977.60 : x
  2. Step 2: Convert to fraction form
    274,977.60/384,139.20 = 274,977.60/x
  3. Step 3: Cross multiply
    274,977.60x = 384,139.20 × 274,977.60
  4. Step 4: Simplify right side
    274,977.60x = 105,629,675,281.92
  5. Step 5: Solve for x
    x = 105,629,675,281.92/274,977.60
  6. Step 6: Final answer
    x = 384,139.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.