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Finding the Fourth Proportional to 273,954.30, 378,055.84 and 153,095.54

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Solution

The fourth proportional to 273,954.30, 378,055.84 and 153,095.54 is: 211,271.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,954.30 : 378,055.84 = 153,095.54 : x
  2. Step 2: Convert to fraction form
    273,954.30/378,055.84 = 153,095.54/x
  3. Step 3: Cross multiply
    273,954.30x = 378,055.84 × 153,095.54
  4. Step 4: Simplify right side
    273,954.30x = 57,878,662,974.95
  5. Step 5: Solve for x
    x = 57,878,662,974.95/273,954.30
  6. Step 6: Final answer
    x = 211,271.23

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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.