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Finding the Fourth Proportional to 147,666.60, 221,532.30 and 47,809.80

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Solution

The fourth proportional to 147,666.60, 221,532.30 and 47,809.80 is: 71,725.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,666.60 : 221,532.30 = 47,809.80 : x
  2. Step 2: Convert to fraction form
    147,666.60/221,532.30 = 47,809.80/x
  3. Step 3: Cross multiply
    147,666.60x = 221,532.30 × 47,809.80
  4. Step 4: Simplify right side
    147,666.60x = 10,591,414,956.54
  5. Step 5: Solve for x
    x = 10,591,414,956.54/147,666.60
  6. Step 6: Final answer
    x = 71,725.19

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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.