Home / 255,739.22-383,719.46-137,272.26

Finding the Fourth Proportional to 255,739.22, 383,719.46 and 137,272.26

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Solution

The fourth proportional to 255,739.22, 383,719.46 and 137,272.26 is: 205,967.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,739.22 : 383,719.46 = 137,272.26 : x
  2. Step 2: Convert to fraction form
    255,739.22/383,719.46 = 137,272.26/x
  3. Step 3: Cross multiply
    255,739.22x = 383,719.46 × 137,272.26
  4. Step 4: Simplify right side
    255,739.22x = 52,674,036,793.82
  5. Step 5: Solve for x
    x = 52,674,036,793.82/255,739.22
  6. Step 6: Final answer
    x = 205,967.77

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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.