Home / 273,945.18-378,052.42-153,086.75

Finding the Fourth Proportional to 273,945.18, 378,052.42 and 153,086.75

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Solution

The fourth proportional to 273,945.18, 378,052.42 and 153,086.75 is: 211,264.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,945.18 : 378,052.42 = 153,086.75 : x
  2. Step 2: Convert to fraction form
    273,945.18/378,052.42 = 153,086.75/x
  3. Step 3: Cross multiply
    273,945.18x = 378,052.42 × 153,086.75
  4. Step 4: Simplify right side
    273,945.18x = 57,874,816,307.44
  5. Step 5: Solve for x
    x = 57,874,816,307.44/273,945.18
  6. Step 6: Final answer
    x = 211,264.23

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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.