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Finding the Fourth Proportional to 260,804.00, 391,264.63 and 140,858.39

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Solution

The fourth proportional to 260,804.00, 391,264.63 and 140,858.39 is: 211,319.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,804.00 : 391,264.63 = 140,858.39 : x
  2. Step 2: Convert to fraction form
    260,804.00/391,264.63 = 140,858.39/x
  3. Step 3: Cross multiply
    260,804.00x = 391,264.63 × 140,858.39
  4. Step 4: Simplify right side
    260,804.00x = 55,112,906,471.76
  5. Step 5: Solve for x
    x = 55,112,906,471.76/260,804.00
  6. Step 6: Final answer
    x = 211,319.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.