Home / 320,004.28-479,986.86-133,017.40

Finding the Fourth Proportional to 320,004.28, 479,986.86 and 133,017.40

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Solution

The fourth proportional to 320,004.28, 479,986.86 and 133,017.40 is: 199,517.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,004.28 : 479,986.86 = 133,017.40 : x
  2. Step 2: Convert to fraction form
    320,004.28/479,986.86 = 133,017.40/x
  3. Step 3: Cross multiply
    320,004.28x = 479,986.86 × 133,017.40
  4. Step 4: Simplify right side
    320,004.28x = 63,846,604,151.36
  5. Step 5: Solve for x
    x = 63,846,604,151.36/320,004.28
  6. Step 6: Final answer
    x = 199,517.97

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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.