Home / 257,319.71-355,102.03-142,600.24

Finding the Fourth Proportional to 257,319.71, 355,102.03 and 142,600.24

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Solution

The fourth proportional to 257,319.71, 355,102.03 and 142,600.24 is: 196,788.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,319.71 : 355,102.03 = 142,600.24 : x
  2. Step 2: Convert to fraction form
    257,319.71/355,102.03 = 142,600.24/x
  3. Step 3: Cross multiply
    257,319.71x = 355,102.03 × 142,600.24
  4. Step 4: Simplify right side
    257,319.71x = 50,637,633,458.23
  5. Step 5: Solve for x
    x = 50,637,633,458.23/257,319.71
  6. Step 6: Final answer
    x = 196,788.79

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1.5x scale

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.