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Finding the Fourth Proportional to 260,462.63, 390,188.41 and 191,949.75

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Solution

The fourth proportional to 260,462.63, 390,188.41 and 191,949.75 is: 287,552.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,462.63 : 390,188.41 = 191,949.75 : x
  2. Step 2: Convert to fraction form
    260,462.63/390,188.41 = 191,949.75/x
  3. Step 3: Cross multiply
    260,462.63x = 390,188.41 × 191,949.75
  4. Step 4: Simplify right side
    260,462.63x = 74,896,567,992.33
  5. Step 5: Solve for x
    x = 74,896,567,992.33/260,462.63
  6. Step 6: Final answer
    x = 287,552.07

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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.