Home / 255,438.56-352,516.19-142,261.31

Finding the Fourth Proportional to 255,438.56, 352,516.19 and 142,261.31

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Solution

The fourth proportional to 255,438.56, 352,516.19 and 142,261.31 is: 196,326.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,438.56 : 352,516.19 = 142,261.31 : x
  2. Step 2: Convert to fraction form
    255,438.56/352,516.19 = 142,261.31/x
  3. Step 3: Cross multiply
    255,438.56x = 352,516.19 × 142,261.31
  4. Step 4: Simplify right side
    255,438.56x = 50,149,415,155.59
  5. Step 5: Solve for x
    x = 50,149,415,155.59/255,438.56
  6. Step 6: Final answer
    x = 196,326.72

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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.