Home / 275,119.80-379,639.08-154,233.36

Finding the Fourth Proportional to 275,119.80, 379,639.08 and 154,233.36

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Solution

The fourth proportional to 275,119.80, 379,639.08 and 154,233.36 is: 212,827.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,119.80 : 379,639.08 = 154,233.36 : x
  2. Step 2: Convert to fraction form
    275,119.80/379,639.08 = 154,233.36/x
  3. Step 3: Cross multiply
    275,119.80x = 379,639.08 × 154,233.36
  4. Step 4: Simplify right side
    275,119.80x = 58,553,010,895.71
  5. Step 5: Solve for x
    x = 58,553,010,895.71/275,119.80
  6. Step 6: Final answer
    x = 212,827.32

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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.