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Finding the Fourth Proportional to 260,550.32, 390,700.64 and 127,274.54

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Solution

The fourth proportional to 260,550.32, 390,700.64 and 127,274.54 is: 190,850.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,550.32 : 390,700.64 = 127,274.54 : x
  2. Step 2: Convert to fraction form
    260,550.32/390,700.64 = 127,274.54/x
  3. Step 3: Cross multiply
    260,550.32x = 390,700.64 × 127,274.54
  4. Step 4: Simplify right side
    260,550.32x = 49,726,242,620.58
  5. Step 5: Solve for x
    x = 49,726,242,620.58/260,550.32
  6. Step 6: Final answer
    x = 190,850.82

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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.