Home / 257,641.39-355,544.79-142,937.43

Finding the Fourth Proportional to 257,641.39, 355,544.79 and 142,937.43

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Solution

The fourth proportional to 257,641.39, 355,544.79 and 142,937.43 is: 197,253.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,641.39 : 355,544.79 = 142,937.43 : x
  2. Step 2: Convert to fraction form
    257,641.39/355,544.79 = 142,937.43/x
  3. Step 3: Cross multiply
    257,641.39x = 355,544.79 × 142,937.43
  4. Step 4: Simplify right side
    257,641.39x = 50,820,658,532.49
  5. Step 5: Solve for x
    x = 50,820,658,532.49/257,641.39
  6. Step 6: Final answer
    x = 197,253.47

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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.