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Finding the Fourth Proportional to 255,171.94, 382,813.22 and 77,674.31

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Solution

The fourth proportional to 255,171.94, 382,813.22 and 77,674.31 is: 116,528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,171.94 : 382,813.22 = 77,674.31 : x
  2. Step 2: Convert to fraction form
    255,171.94/382,813.22 = 77,674.31/x
  3. Step 3: Cross multiply
    255,171.94x = 382,813.22 × 77,674.31
  4. Step 4: Simplify right side
    255,171.94x = 29,734,752,438.05
  5. Step 5: Solve for x
    x = 29,734,752,438.05/255,171.94
  6. Step 6: Final answer
    x = 116,528.30

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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.