Home / 330,014.72-455,420.56-179,111.68

Finding the Fourth Proportional to 330,014.72, 455,420.56 and 179,111.68

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Solution

The fourth proportional to 330,014.72, 455,420.56 and 179,111.68 is: 247,174.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,014.72 : 455,420.56 = 179,111.68 : x
  2. Step 2: Convert to fraction form
    330,014.72/455,420.56 = 179,111.68/x
  3. Step 3: Cross multiply
    330,014.72x = 455,420.56 × 179,111.68
  4. Step 4: Simplify right side
    330,014.72x = 81,571,141,608.14
  5. Step 5: Solve for x
    x = 81,571,141,608.14/330,014.72
  6. Step 6: Final answer
    x = 247,174.25

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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.