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Finding the Fourth Proportional to 255,933.97, 384,136.56 and 129,662.06

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Solution

The fourth proportional to 255,933.97, 384,136.56 and 129,662.06 is: 194,612.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,933.97 : 384,136.56 = 129,662.06 : x
  2. Step 2: Convert to fraction form
    255,933.97/384,136.56 = 129,662.06/x
  3. Step 3: Cross multiply
    255,933.97x = 384,136.56 × 129,662.06
  4. Step 4: Simplify right side
    255,933.97x = 49,807,935,770.23
  5. Step 5: Solve for x
    x = 49,807,935,770.23/255,933.97
  6. Step 6: Final answer
    x = 194,612.45

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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.