Home / 486,971.26-730,456.88-131,985.27

Finding the Fourth Proportional to 486,971.26, 730,456.88 and 131,985.27

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Solution

The fourth proportional to 486,971.26, 730,456.88 and 131,985.27 is: 197,977.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,971.26 : 730,456.88 = 131,985.27 : x
  2. Step 2: Convert to fraction form
    486,971.26/730,456.88 = 131,985.27/x
  3. Step 3: Cross multiply
    486,971.26x = 730,456.88 × 131,985.27
  4. Step 4: Simplify right side
    486,971.26x = 96,409,550,295.85
  5. Step 5: Solve for x
    x = 96,409,550,295.85/486,971.26
  6. Step 6: Final answer
    x = 197,977.91

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Double scale
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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.