Home / 283,072.24-390,640.62-155,755.72

Finding the Fourth Proportional to 283,072.24, 390,640.62 and 155,755.72

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Solution

The fourth proportional to 283,072.24, 390,640.62 and 155,755.72 is: 214,943.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,072.24 : 390,640.62 = 155,755.72 : x
  2. Step 2: Convert to fraction form
    283,072.24/390,640.62 = 155,755.72/x
  3. Step 3: Cross multiply
    283,072.24x = 390,640.62 × 155,755.72
  4. Step 4: Simplify right side
    283,072.24x = 60,844,511,029.35
  5. Step 5: Solve for x
    x = 60,844,511,029.35/283,072.24
  6. Step 6: Final answer
    x = 214,943.40

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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.