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Finding the Fourth Proportional to 438,516.15, 605,049.23 and 266,429.01

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Solution

The fourth proportional to 438,516.15, 605,049.23 and 266,429.01 is: 367,609.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,516.15 : 605,049.23 = 266,429.01 : x
  2. Step 2: Convert to fraction form
    438,516.15/605,049.23 = 266,429.01/x
  3. Step 3: Cross multiply
    438,516.15x = 605,049.23 × 266,429.01
  4. Step 4: Simplify right side
    438,516.15x = 161,202,666,018.02
  5. Step 5: Solve for x
    x = 161,202,666,018.02/438,516.15
  6. Step 6: Final answer
    x = 367,609.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.