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Finding the Fourth Proportional to 444,013.29, 666,129.22 and 128,502.09

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Solution

The fourth proportional to 444,013.29, 666,129.22 and 128,502.09 is: 192,784.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,013.29 : 666,129.22 = 128,502.09 : x
  2. Step 2: Convert to fraction form
    444,013.29/666,129.22 = 128,502.09/x
  3. Step 3: Cross multiply
    444,013.29x = 666,129.22 × 128,502.09
  4. Step 4: Simplify right side
    444,013.29x = 85,598,996,658.81
  5. Step 5: Solve for x
    x = 85,598,996,658.81/444,013.29
  6. Step 6: Final answer
    x = 192,784.76

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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.