Home / 275,436.09-380,108.61-154,586.59

Finding the Fourth Proportional to 275,436.09, 380,108.61 and 154,586.59

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Solution

The fourth proportional to 275,436.09, 380,108.61 and 154,586.59 is: 213,333.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,436.09 : 380,108.61 = 154,586.59 : x
  2. Step 2: Convert to fraction form
    275,436.09/380,108.61 = 154,586.59/x
  3. Step 3: Cross multiply
    275,436.09x = 380,108.61 × 154,586.59
  4. Step 4: Simplify right side
    275,436.09x = 58,759,693,463.07
  5. Step 5: Solve for x
    x = 58,759,693,463.07/275,436.09
  6. Step 6: Final answer
    x = 213,333.31

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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.