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Finding the Fourth Proportional to 318,217.28, 477,384.64 and 104,999.93

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Solution

The fourth proportional to 318,217.28, 477,384.64 and 104,999.93 is: 157,519.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,217.28 : 477,384.64 = 104,999.93 : x
  2. Step 2: Convert to fraction form
    318,217.28/477,384.64 = 104,999.93/x
  3. Step 3: Cross multiply
    318,217.28x = 477,384.64 × 104,999.93
  4. Step 4: Simplify right side
    318,217.28x = 50,125,354,976.54
  5. Step 5: Solve for x
    x = 50,125,354,976.54/318,217.28
  6. Step 6: Final answer
    x = 157,519.27

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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.