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Finding the Fourth Proportional to 373,040.84, 559,699.81 and 259,128.63

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Solution

The fourth proportional to 373,040.84, 559,699.81 and 259,128.63 is: 388,789.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,040.84 : 559,699.81 = 259,128.63 : x
  2. Step 2: Convert to fraction form
    373,040.84/559,699.81 = 259,128.63/x
  3. Step 3: Cross multiply
    373,040.84x = 559,699.81 × 259,128.63
  4. Step 4: Simplify right side
    373,040.84x = 145,034,244,976.56
  5. Step 5: Solve for x
    x = 145,034,244,976.56/373,040.84
  6. Step 6: Final answer
    x = 388,789.19

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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.