Home / 282,431.70-389,738.25-155,080.26

Finding the Fourth Proportional to 282,431.70, 389,738.25 and 155,080.26

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Solution

The fourth proportional to 282,431.70, 389,738.25 and 155,080.26 is: 214,001.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,431.70 : 389,738.25 = 155,080.26 : x
  2. Step 2: Convert to fraction form
    282,431.70/389,738.25 = 155,080.26/x
  3. Step 3: Cross multiply
    282,431.70x = 389,738.25 × 155,080.26
  4. Step 4: Simplify right side
    282,431.70x = 60,440,709,141.95
  5. Step 5: Solve for x
    x = 60,440,709,141.95/282,431.70
  6. Step 6: Final answer
    x = 214,001.15

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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.