Home / 330,018.75-455,427.09-179,115.75

Finding the Fourth Proportional to 330,018.75, 455,427.09 and 179,115.75

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Solution

The fourth proportional to 330,018.75, 455,427.09 and 179,115.75 is: 247,180.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,018.75 : 455,427.09 = 179,115.75 : x
  2. Step 2: Convert to fraction form
    330,018.75/455,427.09 = 179,115.75/x
  3. Step 3: Cross multiply
    330,018.75x = 455,427.09 × 179,115.75
  4. Step 4: Simplify right side
    330,018.75x = 81,574,164,795.67
  5. Step 5: Solve for x
    x = 81,574,164,795.67/330,018.75
  6. Step 6: Final answer
    x = 247,180.39

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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.