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Finding the Fourth Proportional to 322,555.15, 483,668.70 and 189,476.20

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Solution

The fourth proportional to 322,555.15, 483,668.70 and 189,476.20 is: 284,117.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,555.15 : 483,668.70 = 189,476.20 : x
  2. Step 2: Convert to fraction form
    322,555.15/483,668.70 = 189,476.20/x
  3. Step 3: Cross multiply
    322,555.15x = 483,668.70 × 189,476.20
  4. Step 4: Simplify right side
    322,555.15x = 91,643,707,334.94
  5. Step 5: Solve for x
    x = 91,643,707,334.94/322,555.15
  6. Step 6: Final answer
    x = 284,117.95

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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.