Home / 257,502.07-355,346.49-142,781.19

Finding the Fourth Proportional to 257,502.07, 355,346.49 and 142,781.19

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Solution

The fourth proportional to 257,502.07, 355,346.49 and 142,781.19 is: 197,034.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,502.07 : 355,346.49 = 142,781.19 : x
  2. Step 2: Convert to fraction form
    257,502.07/355,346.49 = 142,781.19/x
  3. Step 3: Cross multiply
    257,502.07x = 355,346.49 × 142,781.19
  4. Step 4: Simplify right side
    257,502.07x = 50,736,794,704.52
  5. Step 5: Solve for x
    x = 50,736,794,704.52/257,502.07
  6. Step 6: Final answer
    x = 197,034.51

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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.