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Finding the Fourth Proportional to 146,866.80, 220,300.20 and 127,621.20

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Solution

The fourth proportional to 146,866.80, 220,300.20 and 127,621.20 is: 191,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,866.80 : 220,300.20 = 127,621.20 : x
  2. Step 2: Convert to fraction form
    146,866.80/220,300.20 = 127,621.20/x
  3. Step 3: Cross multiply
    146,866.80x = 220,300.20 × 127,621.20
  4. Step 4: Simplify right side
    146,866.80x = 28,114,975,884.24
  5. Step 5: Solve for x
    x = 28,114,975,884.24/146,866.80
  6. Step 6: Final answer
    x = 191,431.80

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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.