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Finding the Fourth Proportional to 216,843.30, 325,313.55 and 83,711.70

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Solution

The fourth proportional to 216,843.30, 325,313.55 and 83,711.70 is: 125,586.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,843.30 : 325,313.55 = 83,711.70 : x
  2. Step 2: Convert to fraction form
    216,843.30/325,313.55 = 83,711.70/x
  3. Step 3: Cross multiply
    216,843.30x = 325,313.55 × 83,711.70
  4. Step 4: Simplify right side
    216,843.30x = 27,232,550,303.54
  5. Step 5: Solve for x
    x = 27,232,550,303.54/216,843.30
  6. Step 6: Final answer
    x = 125,586.31

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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.