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Finding the Fourth Proportional to 436,071.20, 654,128.40 and 226,119.20

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Solution

The fourth proportional to 436,071.20, 654,128.40 and 226,119.20 is: 339,190.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,071.20 : 654,128.40 = 226,119.20 : x
  2. Step 2: Convert to fraction form
    436,071.20/654,128.40 = 226,119.20/x
  3. Step 3: Cross multiply
    436,071.20x = 654,128.40 × 226,119.20
  4. Step 4: Simplify right side
    436,071.20x = 147,910,990,505.28
  5. Step 5: Solve for x
    x = 147,910,990,505.28/436,071.20
  6. Step 6: Final answer
    x = 339,190.00

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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.