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Finding the Fourth Proportional to 256,550.69, 354,037.42 and 143,373.44

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Solution

The fourth proportional to 256,550.69, 354,037.42 and 143,373.44 is: 197,853.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,550.69 : 354,037.42 = 143,373.44 : x
  2. Step 2: Convert to fraction form
    256,550.69/354,037.42 = 143,373.44/x
  3. Step 3: Cross multiply
    256,550.69x = 354,037.42 × 143,373.44
  4. Step 4: Simplify right side
    256,550.69x = 50,759,562,794.12
  5. Step 5: Solve for x
    x = 50,759,562,794.12/256,550.69
  6. Step 6: Final answer
    x = 197,853.93

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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.