Home / 330,015.09-455,421.30-179,112.09

Finding the Fourth Proportional to 330,015.09, 455,421.30 and 179,112.09

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Solution

The fourth proportional to 330,015.09, 455,421.30 and 179,112.09 is: 247,174.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,015.09 : 455,421.30 = 179,112.09 : x
  2. Step 2: Convert to fraction form
    330,015.09/455,421.30 = 179,112.09/x
  3. Step 3: Cross multiply
    330,015.09x = 455,421.30 × 179,112.09
  4. Step 4: Simplify right side
    330,015.09x = 81,571,460,873.52
  5. Step 5: Solve for x
    x = 81,571,460,873.52/330,015.09
  6. Step 6: Final answer
    x = 247,174.94

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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.