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Finding the Fourth Proportional to 147,645.20, 221,467.80 and 146,770.40

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Solution

The fourth proportional to 147,645.20, 221,467.80 and 146,770.40 is: 220,155.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,645.20 : 221,467.80 = 146,770.40 : x
  2. Step 2: Convert to fraction form
    147,645.20/221,467.80 = 146,770.40/x
  3. Step 3: Cross multiply
    147,645.20x = 221,467.80 × 146,770.40
  4. Step 4: Simplify right side
    147,645.20x = 32,504,917,593.12
  5. Step 5: Solve for x
    x = 32,504,917,593.12/147,645.20
  6. Step 6: Final answer
    x = 220,155.60

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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.