Home / 217,724.52-300,457.20-122,228.76

Finding the Fourth Proportional to 217,724.52, 300,457.20 and 122,228.76

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Solution

The fourth proportional to 217,724.52, 300,457.20 and 122,228.76 is: 168,674.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,724.52 : 300,457.20 = 122,228.76 : x
  2. Step 2: Convert to fraction form
    217,724.52/300,457.20 = 122,228.76/x
  3. Step 3: Cross multiply
    217,724.52x = 300,457.20 × 122,228.76
  4. Step 4: Simplify right side
    217,724.52x = 36,724,510,989.07
  5. Step 5: Solve for x
    x = 36,724,510,989.07/217,724.52
  6. Step 6: Final answer
    x = 168,674.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.