Home / 257,576.36-355,421.52-142,853.64

Finding the Fourth Proportional to 257,576.36, 355,421.52 and 142,853.64

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Solution

The fourth proportional to 257,576.36, 355,421.52 and 142,853.64 is: 197,119.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,576.36 : 355,421.52 = 142,853.64 : x
  2. Step 2: Convert to fraction form
    257,576.36/355,421.52 = 142,853.64/x
  3. Step 3: Cross multiply
    257,576.36x = 355,421.52 × 142,853.64
  4. Step 4: Simplify right side
    257,576.36x = 50,773,257,866.33
  5. Step 5: Solve for x
    x = 50,773,257,866.33/257,576.36
  6. Step 6: Final answer
    x = 197,119.25

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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.