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Finding the Fourth Proportional to 303,390.06, 418,501.52 and 194,455.59

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Solution

The fourth proportional to 303,390.06, 418,501.52 and 194,455.59 is: 268,235.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,390.06 : 418,501.52 = 194,455.59 : x
  2. Step 2: Convert to fraction form
    303,390.06/418,501.52 = 194,455.59/x
  3. Step 3: Cross multiply
    303,390.06x = 418,501.52 × 194,455.59
  4. Step 4: Simplify right side
    303,390.06x = 81,379,958,175.05
  5. Step 5: Solve for x
    x = 81,379,958,175.05/303,390.06
  6. Step 6: Final answer
    x = 268,235.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.