Home / 276,821.60-414,973.20-216,816.80

Finding the Fourth Proportional to 276,821.60, 414,973.20 and 216,816.80

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Solution

The fourth proportional to 276,821.60, 414,973.20 and 216,816.80 is: 325,022.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,821.60 : 414,973.20 = 216,816.80 : x
  2. Step 2: Convert to fraction form
    276,821.60/414,973.20 = 216,816.80/x
  3. Step 3: Cross multiply
    276,821.60x = 414,973.20 × 216,816.80
  4. Step 4: Simplify right side
    276,821.60x = 89,973,161,309.76
  5. Step 5: Solve for x
    x = 89,973,161,309.76/276,821.60
  6. Step 6: Final answer
    x = 325,022.19

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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.