Home / 257,546.36-355,412.86-144,369.12

Finding the Fourth Proportional to 257,546.36, 355,412.86 and 144,369.12

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Solution

The fourth proportional to 257,546.36, 355,412.86 and 144,369.12 is: 199,228.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,546.36 : 355,412.86 = 144,369.12 : x
  2. Step 2: Convert to fraction form
    257,546.36/355,412.86 = 144,369.12/x
  3. Step 3: Cross multiply
    257,546.36x = 355,412.86 × 144,369.12
  4. Step 4: Simplify right side
    257,546.36x = 51,310,641,834.88
  5. Step 5: Solve for x
    x = 51,310,641,834.88/257,546.36
  6. Step 6: Final answer
    x = 199,228.76

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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.