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Finding the Fourth Proportional to 146,576.70, 220,193.10 and 140,999.85

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Solution

The fourth proportional to 146,576.70, 220,193.10 and 140,999.85 is: 211,815.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,576.70 : 220,193.10 = 140,999.85 : x
  2. Step 2: Convert to fraction form
    146,576.70/220,193.10 = 140,999.85/x
  3. Step 3: Cross multiply
    146,576.70x = 220,193.10 × 140,999.85
  4. Step 4: Simplify right side
    146,576.70x = 31,047,194,071.04
  5. Step 5: Solve for x
    x = 31,047,194,071.04/146,576.70
  6. Step 6: Final answer
    x = 211,815.34

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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.