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Finding the Fourth Proportional to 273,991.88, 378,107.40 and 153,133.10

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Solution

The fourth proportional to 273,991.88, 378,107.40 and 153,133.10 is: 211,322.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,991.88 : 378,107.40 = 153,133.10 : x
  2. Step 2: Convert to fraction form
    273,991.88/378,107.40 = 153,133.10/x
  3. Step 3: Cross multiply
    273,991.88x = 378,107.40 × 153,133.10
  4. Step 4: Simplify right side
    273,991.88x = 57,900,758,294.94
  5. Step 5: Solve for x
    x = 57,900,758,294.94/273,991.88
  6. Step 6: Final answer
    x = 211,322.90

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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.