Home / 273,968.47-378,075.27-153,109.72

Finding the Fourth Proportional to 273,968.47, 378,075.27 and 153,109.72

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Solution

The fourth proportional to 273,968.47, 378,075.27 and 153,109.72 is: 211,290.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,968.47 : 378,075.27 = 153,109.72 : x
  2. Step 2: Convert to fraction form
    273,968.47/378,075.27 = 153,109.72/x
  3. Step 3: Cross multiply
    273,968.47x = 378,075.27 × 153,109.72
  4. Step 4: Simplify right side
    273,968.47x = 57,886,998,728.62
  5. Step 5: Solve for x
    x = 57,886,998,728.62/273,968.47
  6. Step 6: Final answer
    x = 211,290.73

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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.