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Finding the Fourth Proportional to 220,156.80, 329,846.40 and 136,953.60

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Solution

The fourth proportional to 220,156.80, 329,846.40 and 136,953.60 is: 205,188.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,156.80 : 329,846.40 = 136,953.60 : x
  2. Step 2: Convert to fraction form
    220,156.80/329,846.40 = 136,953.60/x
  3. Step 3: Cross multiply
    220,156.80x = 329,846.40 × 136,953.60
  4. Step 4: Simplify right side
    220,156.80x = 45,173,651,927.04
  5. Step 5: Solve for x
    x = 45,173,651,927.04/220,156.80
  6. Step 6: Final answer
    x = 205,188.54

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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.