Home / 273,970.47-378,078.03-153,111.72

Finding the Fourth Proportional to 273,970.47, 378,078.03 and 153,111.72

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Solution

The fourth proportional to 273,970.47, 378,078.03 and 153,111.72 is: 211,293.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,970.47 : 378,078.03 = 153,111.72 : x
  2. Step 2: Convert to fraction form
    273,970.47/378,078.03 = 153,111.72/x
  3. Step 3: Cross multiply
    273,970.47x = 378,078.03 × 153,111.72
  4. Step 4: Simplify right side
    273,970.47x = 57,888,177,467.51
  5. Step 5: Solve for x
    x = 57,888,177,467.51/273,970.47
  6. Step 6: Final answer
    x = 211,293.49

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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.