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Finding the Fourth Proportional to 220,506.09, 330,342.79 and 130,279.58

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Solution

The fourth proportional to 220,506.09, 330,342.79 and 130,279.58 is: 195,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,506.09 : 330,342.79 = 130,279.58 : x
  2. Step 2: Convert to fraction form
    220,506.09/330,342.79 = 130,279.58/x
  3. Step 3: Cross multiply
    220,506.09x = 330,342.79 × 130,279.58
  4. Step 4: Simplify right side
    220,506.09x = 43,036,919,285.83
  5. Step 5: Solve for x
    x = 43,036,919,285.83/220,506.09
  6. Step 6: Final answer
    x = 195,173.39

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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.