Home / 348,136.56-522,120.06-145,623.20

Finding the Fourth Proportional to 348,136.56, 522,120.06 and 145,623.20

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Solution

The fourth proportional to 348,136.56, 522,120.06 and 145,623.20 is: 218,399.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,136.56 : 522,120.06 = 145,623.20 : x
  2. Step 2: Convert to fraction form
    348,136.56/522,120.06 = 145,623.20/x
  3. Step 3: Cross multiply
    348,136.56x = 522,120.06 × 145,623.20
  4. Step 4: Simplify right side
    348,136.56x = 76,032,791,310.79
  5. Step 5: Solve for x
    x = 76,032,791,310.79/348,136.56
  6. Step 6: Final answer
    x = 218,399.33

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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.