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Finding the Fourth Proportional to 146,645.10, 220,405.05 and 144,020.70

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Solution

The fourth proportional to 146,645.10, 220,405.05 and 144,020.70 is: 216,460.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,645.10 : 220,405.05 = 144,020.70 : x
  2. Step 2: Convert to fraction form
    146,645.10/220,405.05 = 144,020.70/x
  3. Step 3: Cross multiply
    146,645.10x = 220,405.05 × 144,020.70
  4. Step 4: Simplify right side
    146,645.10x = 31,742,889,584.54
  5. Step 5: Solve for x
    x = 31,742,889,584.54/146,645.10
  6. Step 6: Final answer
    x = 216,460.62

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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.