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Finding the Fourth Proportional to 255,163.69, 352,188.39 and 197,689.33

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Solution

The fourth proportional to 255,163.69, 352,188.39 and 197,689.33 is: 272,859.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,163.69 : 352,188.39 = 197,689.33 : x
  2. Step 2: Convert to fraction form
    255,163.69/352,188.39 = 197,689.33/x
  3. Step 3: Cross multiply
    255,163.69x = 352,188.39 × 197,689.33
  4. Step 4: Simplify right side
    255,163.69x = 69,623,886,852.88
  5. Step 5: Solve for x
    x = 69,623,886,852.88/255,163.69
  6. Step 6: Final answer
    x = 272,859.70

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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.