Home / 257,627.49-355,546.58-142,917.45

Finding the Fourth Proportional to 257,627.49, 355,546.58 and 142,917.45

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Solution

The fourth proportional to 257,627.49, 355,546.58 and 142,917.45 is: 197,237.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,627.49 : 355,546.58 = 142,917.45 : x
  2. Step 2: Convert to fraction form
    257,627.49/355,546.58 = 142,917.45/x
  3. Step 3: Cross multiply
    257,627.49x = 355,546.58 × 142,917.45
  4. Step 4: Simplify right side
    257,627.49x = 50,813,809,855.23
  5. Step 5: Solve for x
    x = 50,813,809,855.23/257,627.49
  6. Step 6: Final answer
    x = 197,237.53

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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.