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Finding the Fourth Proportional to 317,660.51, 478,774.05 and 273,816.42

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Solution

The fourth proportional to 317,660.51, 478,774.05 and 273,816.42 is: 412,692.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,660.51 : 478,774.05 = 273,816.42 : x
  2. Step 2: Convert to fraction form
    317,660.51/478,774.05 = 273,816.42/x
  3. Step 3: Cross multiply
    317,660.51x = 478,774.05 × 273,816.42
  4. Step 4: Simplify right side
    317,660.51x = 131,096,196,359.90
  5. Step 5: Solve for x
    x = 131,096,196,359.90/317,660.51
  6. Step 6: Final answer
    x = 412,692.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.