Home / 255,239.21-382,858.94-105,314.79

Finding the Fourth Proportional to 255,239.21, 382,858.94 and 105,314.79

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Solution

The fourth proportional to 255,239.21, 382,858.94 and 105,314.79 is: 157,972.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,239.21 : 382,858.94 = 105,314.79 : x
  2. Step 2: Convert to fraction form
    255,239.21/382,858.94 = 105,314.79/x
  3. Step 3: Cross multiply
    255,239.21x = 382,858.94 × 105,314.79
  4. Step 4: Simplify right side
    255,239.21x = 40,320,708,339.15
  5. Step 5: Solve for x
    x = 40,320,708,339.15/255,239.21
  6. Step 6: Final answer
    x = 157,972.23

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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.