Home / 266,519.18-401,576.94-220,172.55

Finding the Fourth Proportional to 266,519.18, 401,576.94 and 220,172.55

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Solution

The fourth proportional to 266,519.18, 401,576.94 and 220,172.55 is: 331,744.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,519.18 : 401,576.94 = 220,172.55 : x
  2. Step 2: Convert to fraction form
    266,519.18/401,576.94 = 220,172.55/x
  3. Step 3: Cross multiply
    266,519.18x = 401,576.94 × 220,172.55
  4. Step 4: Simplify right side
    266,519.18x = 88,416,218,075.35
  5. Step 5: Solve for x
    x = 88,416,218,075.35/266,519.18
  6. Step 6: Final answer
    x = 331,744.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.