Home / 255,933.23-384,135.44-129,661.31

Finding the Fourth Proportional to 255,933.23, 384,135.44 and 129,661.31

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Solution

The fourth proportional to 255,933.23, 384,135.44 and 129,661.31 is: 194,611.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,933.23 : 384,135.44 = 129,661.31 : x
  2. Step 2: Convert to fraction form
    255,933.23/384,135.44 = 129,661.31/x
  3. Step 3: Cross multiply
    255,933.23x = 384,135.44 × 129,661.31
  4. Step 4: Simplify right side
    255,933.23x = 49,807,501,798.84
  5. Step 5: Solve for x
    x = 49,807,501,798.84/255,933.23
  6. Step 6: Final answer
    x = 194,611.32

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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.