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Finding the Fourth Proportional to 220,599.98, 330,064.94 and 130,690.96

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Solution

The fourth proportional to 220,599.98, 330,064.94 and 130,690.96 is: 195,541.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,599.98 : 330,064.94 = 130,690.96 : x
  2. Step 2: Convert to fraction form
    220,599.98/330,064.94 = 130,690.96/x
  3. Step 3: Cross multiply
    220,599.98x = 330,064.94 × 130,690.96
  4. Step 4: Simplify right side
    220,599.98x = 43,136,502,392.33
  5. Step 5: Solve for x
    x = 43,136,502,392.33/220,599.98
  6. Step 6: Final answer
    x = 195,541.74

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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.