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Finding the Fourth Proportional to 273,959.82, 378,065.96 and 153,103.13

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Solution

The fourth proportional to 273,959.82, 378,065.96 and 153,103.13 is: 211,283.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,959.82 : 378,065.96 = 153,103.13 : x
  2. Step 2: Convert to fraction form
    273,959.82/378,065.96 = 153,103.13/x
  3. Step 3: Cross multiply
    273,959.82x = 378,065.96 × 153,103.13
  4. Step 4: Simplify right side
    273,959.82x = 57,883,080,584.36
  5. Step 5: Solve for x
    x = 57,883,080,584.36/273,959.82
  6. Step 6: Final answer
    x = 211,283.10

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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.