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Finding the Fourth Proportional to 341,243.48, 511,895.94 and 91,919.96

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Solution

The fourth proportional to 341,243.48, 511,895.94 and 91,919.96 is: 137,888.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,243.48 : 511,895.94 = 91,919.96 : x
  2. Step 2: Convert to fraction form
    341,243.48/511,895.94 = 91,919.96/x
  3. Step 3: Cross multiply
    341,243.48x = 511,895.94 × 91,919.96
  4. Step 4: Simplify right side
    341,243.48x = 47,053,454,328.96
  5. Step 5: Solve for x
    x = 47,053,454,328.96/341,243.48
  6. Step 6: Final answer
    x = 137,888.21

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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.