Home / 337,389.45-505,500.98-218,999.85

Finding the Fourth Proportional to 337,389.45, 505,500.98 and 218,999.85

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Solution

The fourth proportional to 337,389.45, 505,500.98 and 218,999.85 is: 328,121.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,389.45 : 505,500.98 = 218,999.85 : x
  2. Step 2: Convert to fraction form
    337,389.45/505,500.98 = 218,999.85/x
  3. Step 3: Cross multiply
    337,389.45x = 505,500.98 × 218,999.85
  4. Step 4: Simplify right side
    337,389.45x = 110,704,637,699.85
  5. Step 5: Solve for x
    x = 110,704,637,699.85/337,389.45
  6. Step 6: Final answer
    x = 328,121.22

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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.