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Finding the Fourth Proportional to 255,671.87, 352,829.67 and 140,955.09

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Solution

The fourth proportional to 255,671.87, 352,829.67 and 140,955.09 is: 194,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,671.87 : 352,829.67 = 140,955.09 : x
  2. Step 2: Convert to fraction form
    255,671.87/352,829.67 = 140,955.09/x
  3. Step 3: Cross multiply
    255,671.87x = 352,829.67 × 140,955.09
  4. Step 4: Simplify right side
    255,671.87x = 49,733,137,889.52
  5. Step 5: Solve for x
    x = 49,733,137,889.52/255,671.87
  6. Step 6: Final answer
    x = 194,519.40

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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.