Home / 257,907.87-355,938.44-144,731.07

Finding the Fourth Proportional to 257,907.87, 355,938.44 and 144,731.07

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Solution

The fourth proportional to 257,907.87, 355,938.44 and 144,731.07 is: 199,743.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,907.87 : 355,938.44 = 144,731.07 : x
  2. Step 2: Convert to fraction form
    257,907.87/355,938.44 = 144,731.07/x
  3. Step 3: Cross multiply
    257,907.87x = 355,938.44 × 144,731.07
  4. Step 4: Simplify right side
    257,907.87x = 51,515,351,275.33
  5. Step 5: Solve for x
    x = 51,515,351,275.33/257,907.87
  6. Step 6: Final answer
    x = 199,743.23

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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.