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Finding the Fourth Proportional to 147,210.40, 220,815.60 and 53,752.60

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Solution

The fourth proportional to 147,210.40, 220,815.60 and 53,752.60 is: 80,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,210.40 : 220,815.60 = 53,752.60 : x
  2. Step 2: Convert to fraction form
    147,210.40/220,815.60 = 53,752.60/x
  3. Step 3: Cross multiply
    147,210.40x = 220,815.60 × 53,752.60
  4. Step 4: Simplify right side
    147,210.40x = 11,869,412,620.56
  5. Step 5: Solve for x
    x = 11,869,412,620.56/147,210.40
  6. Step 6: Final answer
    x = 80,628.90

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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.