Home / 257,660.73-355,572.72-142,941.65

Finding the Fourth Proportional to 257,660.73, 355,572.72 and 142,941.65

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Solution

The fourth proportional to 257,660.73, 355,572.72 and 142,941.65 is: 197,259.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,660.73 : 355,572.72 = 142,941.65 : x
  2. Step 2: Convert to fraction form
    257,660.73/355,572.72 = 142,941.65/x
  3. Step 3: Cross multiply
    257,660.73x = 355,572.72 × 142,941.65
  4. Step 4: Simplify right side
    257,660.73x = 50,826,149,513.92
  5. Step 5: Solve for x
    x = 50,826,149,513.92/257,660.73
  6. Step 6: Final answer
    x = 197,259.98

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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.