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Finding the Fourth Proportional to 255,579.60, 352,698.68 and 140,858.00

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Solution

The fourth proportional to 255,579.60, 352,698.68 and 140,858.00 is: 194,383.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,579.60 : 352,698.68 = 140,858.00 : x
  2. Step 2: Convert to fraction form
    255,579.60/352,698.68 = 140,858.00/x
  3. Step 3: Cross multiply
    255,579.60x = 352,698.68 × 140,858.00
  4. Step 4: Simplify right side
    255,579.60x = 49,680,430,578.71
  5. Step 5: Solve for x
    x = 49,680,430,578.71/255,579.60
  6. Step 6: Final answer
    x = 194,383.39

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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.