Home / 321,117.12-481,974.58-163,463.56

Finding the Fourth Proportional to 321,117.12, 481,974.58 and 163,463.56

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Solution

The fourth proportional to 321,117.12, 481,974.58 and 163,463.56 is: 245,347.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,117.12 : 481,974.58 = 163,463.56 : x
  2. Step 2: Convert to fraction form
    321,117.12/481,974.58 = 163,463.56/x
  3. Step 3: Cross multiply
    321,117.12x = 481,974.58 × 163,463.56
  4. Step 4: Simplify right side
    321,117.12x = 78,785,280,676.30
  5. Step 5: Solve for x
    x = 78,785,280,676.30/321,117.12
  6. Step 6: Final answer
    x = 245,347.49

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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.