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Finding the Fourth Proportional to 348,054.80, 522,082.20 and 343,389.20

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Solution

The fourth proportional to 348,054.80, 522,082.20 and 343,389.20 is: 515,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,054.80 : 522,082.20 = 343,389.20 : x
  2. Step 2: Convert to fraction form
    348,054.80/522,082.20 = 343,389.20/x
  3. Step 3: Cross multiply
    348,054.80x = 522,082.20 × 343,389.20
  4. Step 4: Simplify right side
    348,054.80x = 179,277,388,992.24
  5. Step 5: Solve for x
    x = 179,277,388,992.24/348,054.80
  6. Step 6: Final answer
    x = 515,083.80

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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.