Home / 257,563.26-355,438.33-142,852.61

Finding the Fourth Proportional to 257,563.26, 355,438.33 and 142,852.61

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Solution

The fourth proportional to 257,563.26, 355,438.33 and 142,852.61 is: 197,137.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,563.26 : 355,438.33 = 142,852.61 : x
  2. Step 2: Convert to fraction form
    257,563.26/355,438.33 = 142,852.61/x
  3. Step 3: Cross multiply
    257,563.26x = 355,438.33 × 142,852.61
  4. Step 4: Simplify right side
    257,563.26x = 50,775,293,666.01
  5. Step 5: Solve for x
    x = 50,775,293,666.01/257,563.26
  6. Step 6: Final answer
    x = 197,137.18

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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.