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Finding the Fourth Proportional to 273,949.50, 378,049.23 and 153,090.75

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Solution

The fourth proportional to 273,949.50, 378,049.23 and 153,090.75 is: 211,264.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,949.50 : 378,049.23 = 153,090.75 : x
  2. Step 2: Convert to fraction form
    273,949.50/378,049.23 = 153,090.75/x
  3. Step 3: Cross multiply
    273,949.50x = 378,049.23 × 153,090.75
  4. Step 4: Simplify right side
    273,949.50x = 57,875,840,157.62
  5. Step 5: Solve for x
    x = 57,875,840,157.62/273,949.50
  6. Step 6: Final answer
    x = 211,264.63

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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.