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Finding the Fourth Proportional to 230,828.20, 346,047.90 and 120,020.20

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Solution

The fourth proportional to 230,828.20, 346,047.90 and 120,020.20 is: 179,929.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,828.20 : 346,047.90 = 120,020.20 : x
  2. Step 2: Convert to fraction form
    230,828.20/346,047.90 = 120,020.20/x
  3. Step 3: Cross multiply
    230,828.20x = 346,047.90 × 120,020.20
  4. Step 4: Simplify right side
    230,828.20x = 41,532,738,167.58
  5. Step 5: Solve for x
    x = 41,532,738,167.58/230,828.20
  6. Step 6: Final answer
    x = 179,929.22

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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.