Home / 220,536.30-330,807.01-209,780.36

Finding the Fourth Proportional to 220,536.30, 330,807.01 and 209,780.36

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Solution

The fourth proportional to 220,536.30, 330,807.01 and 209,780.36 is: 314,672.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,536.30 : 330,807.01 = 209,780.36 : x
  2. Step 2: Convert to fraction form
    220,536.30/330,807.01 = 209,780.36/x
  3. Step 3: Cross multiply
    220,536.30x = 330,807.01 × 209,780.36
  4. Step 4: Simplify right side
    220,536.30x = 69,396,813,648.32
  5. Step 5: Solve for x
    x = 69,396,813,648.32/220,536.30
  6. Step 6: Final answer
    x = 314,672.98

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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.