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Finding the Fourth Proportional to 269,526.20, 404,216.40 and 79,986.20

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Solution

The fourth proportional to 269,526.20, 404,216.40 and 79,986.20 is: 119,957.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,526.20 : 404,216.40 = 79,986.20 : x
  2. Step 2: Convert to fraction form
    269,526.20/404,216.40 = 79,986.20/x
  3. Step 3: Cross multiply
    269,526.20x = 404,216.40 × 79,986.20
  4. Step 4: Simplify right side
    269,526.20x = 32,331,733,813.68
  5. Step 5: Solve for x
    x = 32,331,733,813.68/269,526.20
  6. Step 6: Final answer
    x = 119,957.67

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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.