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Finding the Fourth Proportional to 147,383.70, 221,118.60 and 47,541.68

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Solution

The fourth proportional to 147,383.70, 221,118.60 and 47,541.68 is: 71,326.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,383.70 : 221,118.60 = 47,541.68 : x
  2. Step 2: Convert to fraction form
    147,383.70/221,118.60 = 47,541.68/x
  3. Step 3: Cross multiply
    147,383.70x = 221,118.60 × 47,541.68
  4. Step 4: Simplify right side
    147,383.70x = 10,512,348,617.66
  5. Step 5: Solve for x
    x = 10,512,348,617.66/147,383.70
  6. Step 6: Final answer
    x = 71,326.40

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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.