Home / 257,497.83-355,351.26-142,781.31

Finding the Fourth Proportional to 257,497.83, 355,351.26 and 142,781.31

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Solution

The fourth proportional to 257,497.83, 355,351.26 and 142,781.31 is: 197,040.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,497.83 : 355,351.26 = 142,781.31 : x
  2. Step 2: Convert to fraction form
    257,497.83/355,351.26 = 142,781.31/x
  3. Step 3: Cross multiply
    257,497.83x = 355,351.26 × 142,781.31
  4. Step 4: Simplify right side
    257,497.83x = 50,737,518,412.95
  5. Step 5: Solve for x
    x = 50,737,518,412.95/257,497.83
  6. Step 6: Final answer
    x = 197,040.57

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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.