Home / 257,640.75-355,544.24-144,463.50

Finding the Fourth Proportional to 257,640.75, 355,544.24 and 144,463.50

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Solution

The fourth proportional to 257,640.75, 355,544.24 and 144,463.50 is: 199,359.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,640.75 : 355,544.24 = 144,463.50 : x
  2. Step 2: Convert to fraction form
    257,640.75/355,544.24 = 144,463.50/x
  3. Step 3: Cross multiply
    257,640.75x = 355,544.24 × 144,463.50
  4. Step 4: Simplify right side
    257,640.75x = 51,363,164,592.92
  5. Step 5: Solve for x
    x = 51,363,164,592.92/257,640.75
  6. Step 6: Final answer
    x = 199,359.63

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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.