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Finding the Fourth Proportional to 486,970.84, 730,456.25 and 131,984.85

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Solution

The fourth proportional to 486,970.84, 730,456.25 and 131,984.85 is: 197,977.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,970.84 : 730,456.25 = 131,984.85 : x
  2. Step 2: Convert to fraction form
    486,970.84/730,456.25 = 131,984.85/x
  3. Step 3: Cross multiply
    486,970.84x = 730,456.25 × 131,984.85
  4. Step 4: Simplify right side
    486,970.84x = 96,409,158,612.69
  5. Step 5: Solve for x
    x = 96,409,158,612.69/486,970.84
  6. Step 6: Final answer
    x = 197,977.27

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Similar ratio
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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.