Home / 297,918.80-446,489.40-137,976.20

Finding the Fourth Proportional to 297,918.80, 446,489.40 and 137,976.20

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Solution

The fourth proportional to 297,918.80, 446,489.40 and 137,976.20 is: 206,784.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,918.80 : 446,489.40 = 137,976.20 : x
  2. Step 2: Convert to fraction form
    297,918.80/446,489.40 = 137,976.20/x
  3. Step 3: Cross multiply
    297,918.80x = 446,489.40 × 137,976.20
  4. Step 4: Simplify right side
    297,918.80x = 61,604,910,752.28
  5. Step 5: Solve for x
    x = 61,604,910,752.28/297,918.80
  6. Step 6: Final answer
    x = 206,784.23

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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.