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Finding the Fourth Proportional to 147,383.70, 220,966.20 and 47,486.40

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Solution

The fourth proportional to 147,383.70, 220,966.20 and 47,486.40 is: 71,194.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,383.70 : 220,966.20 = 47,486.40 : x
  2. Step 2: Convert to fraction form
    147,383.70/220,966.20 = 47,486.40/x
  3. Step 3: Cross multiply
    147,383.70x = 220,966.20 × 47,486.40
  4. Step 4: Simplify right side
    147,383.70x = 10,492,889,359.68
  5. Step 5: Solve for x
    x = 10,492,889,359.68/147,383.70
  6. Step 6: Final answer
    x = 71,194.37

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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.