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Finding the Fourth Proportional to 401,085.07, 601,222.20 and 251,430.38

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Solution

The fourth proportional to 401,085.07, 601,222.20 and 251,430.38 is: 376,891.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,085.07 : 601,222.20 = 251,430.38 : x
  2. Step 2: Convert to fraction form
    401,085.07/601,222.20 = 251,430.38/x
  3. Step 3: Cross multiply
    401,085.07x = 601,222.20 × 251,430.38
  4. Step 4: Simplify right side
    401,085.07x = 151,165,524,516.04
  5. Step 5: Solve for x
    x = 151,165,524,516.04/401,085.07
  6. Step 6: Final answer
    x = 376,891.43

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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.