Home / 257,537.37-355,400.45-144,360.12

Finding the Fourth Proportional to 257,537.37, 355,400.45 and 144,360.12

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Solution

The fourth proportional to 257,537.37, 355,400.45 and 144,360.12 is: 199,216.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,537.37 : 355,400.45 = 144,360.12 : x
  2. Step 2: Convert to fraction form
    257,537.37/355,400.45 = 144,360.12/x
  3. Step 3: Cross multiply
    257,537.37x = 355,400.45 × 144,360.12
  4. Step 4: Simplify right side
    257,537.37x = 51,305,649,111.25
  5. Step 5: Solve for x
    x = 51,305,649,111.25/257,537.37
  6. Step 6: Final answer
    x = 199,216.33

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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.