Home / 257,539.37-355,403.21-144,362.12

Finding the Fourth Proportional to 257,539.37, 355,403.21 and 144,362.12

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Solution

The fourth proportional to 257,539.37, 355,403.21 and 144,362.12 is: 199,219.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,539.37 : 355,403.21 = 144,362.12 : x
  2. Step 2: Convert to fraction form
    257,539.37/355,403.21 = 144,362.12/x
  3. Step 3: Cross multiply
    257,539.37x = 355,403.21 × 144,362.12
  4. Step 4: Simplify right side
    257,539.37x = 51,306,758,351.58
  5. Step 5: Solve for x
    x = 51,306,758,351.58/257,539.37
  6. Step 6: Final answer
    x = 199,219.09

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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.