Home / 321,123.20-481,166.40-202,582.40

Finding the Fourth Proportional to 321,123.20, 481,166.40 and 202,582.40

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Solution

The fourth proportional to 321,123.20, 481,166.40 and 202,582.40 is: 303,546.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,123.20 : 481,166.40 = 202,582.40 : x
  2. Step 2: Convert to fraction form
    321,123.20/481,166.40 = 202,582.40/x
  3. Step 3: Cross multiply
    321,123.20x = 481,166.40 × 202,582.40
  4. Step 4: Simplify right side
    321,123.20x = 97,475,844,111.36
  5. Step 5: Solve for x
    x = 97,475,844,111.36/321,123.20
  6. Step 6: Final answer
    x = 303,546.56

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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.