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Finding the Fourth Proportional to 318,289.77, 477,440.60 and 254,815.07

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Solution

The fourth proportional to 318,289.77, 477,440.60 and 254,815.07 is: 382,227.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,289.77 : 477,440.60 = 254,815.07 : x
  2. Step 2: Convert to fraction form
    318,289.77/477,440.60 = 254,815.07/x
  3. Step 3: Cross multiply
    318,289.77x = 477,440.60 × 254,815.07
  4. Step 4: Simplify right side
    318,289.77x = 121,659,056,248.56
  5. Step 5: Solve for x
    x = 121,659,056,248.56/318,289.77
  6. Step 6: Final answer
    x = 382,227.35

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1.5x scale

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.