Home / 282,750.94-389,907.03-187,222.78

Finding the Fourth Proportional to 282,750.94, 389,907.03 and 187,222.78

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Solution

The fourth proportional to 282,750.94, 389,907.03 and 187,222.78 is: 258,175.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,750.94 : 389,907.03 = 187,222.78 : x
  2. Step 2: Convert to fraction form
    282,750.94/389,907.03 = 187,222.78/x
  3. Step 3: Cross multiply
    282,750.94x = 389,907.03 × 187,222.78
  4. Step 4: Simplify right side
    282,750.94x = 72,999,478,098.14
  5. Step 5: Solve for x
    x = 72,999,478,098.14/282,750.94
  6. Step 6: Final answer
    x = 258,175.90

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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.