Home / 220,457.21-304,229.69-122,339.46

Finding the Fourth Proportional to 220,457.21, 304,229.69 and 122,339.46

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Solution

The fourth proportional to 220,457.21, 304,229.69 and 122,339.46 is: 168,827.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,457.21 : 304,229.69 = 122,339.46 : x
  2. Step 2: Convert to fraction form
    220,457.21/304,229.69 = 122,339.46/x
  3. Step 3: Cross multiply
    220,457.21x = 304,229.69 × 122,339.46
  4. Step 4: Simplify right side
    220,457.21x = 37,219,295,990.57
  5. Step 5: Solve for x
    x = 37,219,295,990.57/220,457.21
  6. Step 6: Final answer
    x = 168,827.76

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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.