Home / 220,228.38-330,391.80-70,477.65

Finding the Fourth Proportional to 220,228.38, 330,391.80 and 70,477.65

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Solution

The fourth proportional to 220,228.38, 330,391.80 and 70,477.65 is: 105,732.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,228.38 : 330,391.80 = 70,477.65 : x
  2. Step 2: Convert to fraction form
    220,228.38/330,391.80 = 70,477.65/x
  3. Step 3: Cross multiply
    220,228.38x = 330,391.80 × 70,477.65
  4. Step 4: Simplify right side
    220,228.38x = 23,285,237,643.27
  5. Step 5: Solve for x
    x = 23,285,237,643.27/220,228.38
  6. Step 6: Final answer
    x = 105,732.23

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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.