Home / 257,560.14-355,434-142,849.48

Finding the Fourth Proportional to 257,560.14, 355,434 and 142,849.48

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Solution

The fourth proportional to 257,560.14, 355,434 and 142,849.48 is: 197,132.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,560.14 : 355,434 = 142,849.48 : x
  2. Step 2: Convert to fraction form
    257,560.14/355,434 = 142,849.48/x
  3. Step 3: Cross multiply
    257,560.14x = 355,434 × 142,849.48
  4. Step 4: Simplify right side
    257,560.14x = 50,773,562,074.32
  5. Step 5: Solve for x
    x = 50,773,562,074.32/257,560.14
  6. Step 6: Final answer
    x = 197,132.84

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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.