Home / 257,415.41-355,022.63-181,186.85

Finding the Fourth Proportional to 257,415.41, 355,022.63 and 181,186.85

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Solution

The fourth proportional to 257,415.41, 355,022.63 and 181,186.85 is: 249,889.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,415.41 : 355,022.63 = 181,186.85 : x
  2. Step 2: Convert to fraction form
    257,415.41/355,022.63 = 181,186.85/x
  3. Step 3: Cross multiply
    257,415.41x = 355,022.63 × 181,186.85
  4. Step 4: Simplify right side
    257,415.41x = 64,325,432,008.42
  5. Step 5: Solve for x
    x = 64,325,432,008.42/257,415.41
  6. Step 6: Final answer
    x = 249,889.59

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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.