Home / 257,742.21-355,567.73-167,121.12

Finding the Fourth Proportional to 257,742.21, 355,567.73 and 167,121.12

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Solution

The fourth proportional to 257,742.21, 355,567.73 and 167,121.12 is: 230,551.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,742.21 : 355,567.73 = 167,121.12 : x
  2. Step 2: Convert to fraction form
    257,742.21/355,567.73 = 167,121.12/x
  3. Step 3: Cross multiply
    257,742.21x = 355,567.73 × 167,121.12
  4. Step 4: Simplify right side
    257,742.21x = 59,422,876,437.85
  5. Step 5: Solve for x
    x = 59,422,876,437.85/257,742.21
  6. Step 6: Final answer
    x = 230,551.59

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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.