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Finding the Fourth Proportional to 146,860.80, 220,291.20 and 127,615.20

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Solution

The fourth proportional to 146,860.80, 220,291.20 and 127,615.20 is: 191,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,860.80 : 220,291.20 = 127,615.20 : x
  2. Step 2: Convert to fraction form
    146,860.80/220,291.20 = 127,615.20/x
  3. Step 3: Cross multiply
    146,860.80x = 220,291.20 × 127,615.20
  4. Step 4: Simplify right side
    146,860.80x = 28,112,505,546.24
  5. Step 5: Solve for x
    x = 28,112,505,546.24/146,860.80
  6. Step 6: Final answer
    x = 191,422.80

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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.