Home / 446,918.80-670,378.20-131,407.60

Finding the Fourth Proportional to 446,918.80, 670,378.20 and 131,407.60

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Solution

The fourth proportional to 446,918.80, 670,378.20 and 131,407.60 is: 197,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,918.80 : 670,378.20 = 131,407.60 : x
  2. Step 2: Convert to fraction form
    446,918.80/670,378.20 = 131,407.60/x
  3. Step 3: Cross multiply
    446,918.80x = 670,378.20 × 131,407.60
  4. Step 4: Simplify right side
    446,918.80x = 88,092,790,354.32
  5. Step 5: Solve for x
    x = 88,092,790,354.32/446,918.80
  6. Step 6: Final answer
    x = 197,111.40

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Similar ratio
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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.