Home / 218,861.58-328,299.21-69,103.26

Finding the Fourth Proportional to 218,861.58, 328,299.21 and 69,103.26

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Solution

The fourth proportional to 218,861.58, 328,299.21 and 69,103.26 is: 103,657.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,861.58 : 328,299.21 = 69,103.26 : x
  2. Step 2: Convert to fraction form
    218,861.58/328,299.21 = 69,103.26/x
  3. Step 3: Cross multiply
    218,861.58x = 328,299.21 × 69,103.26
  4. Step 4: Simplify right side
    218,861.58x = 22,686,545,666.42
  5. Step 5: Solve for x
    x = 22,686,545,666.42/218,861.58
  6. Step 6: Final answer
    x = 103,657.05

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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.