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Finding the Fourth Proportional to 273,007.70, 409,511.55 and 243,977.30

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Solution

The fourth proportional to 273,007.70, 409,511.55 and 243,977.30 is: 365,965.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,007.70 : 409,511.55 = 243,977.30 : x
  2. Step 2: Convert to fraction form
    273,007.70/409,511.55 = 243,977.30/x
  3. Step 3: Cross multiply
    273,007.70x = 409,511.55 × 243,977.30
  4. Step 4: Simplify right side
    273,007.70x = 99,911,522,287.82
  5. Step 5: Solve for x
    x = 99,911,522,287.82/273,007.70
  6. Step 6: Final answer
    x = 365,965.95

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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.