Home / 330,040.49-455,377.80-186,800.53

Finding the Fourth Proportional to 330,040.49, 455,377.80 and 186,800.53

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Solution

The fourth proportional to 330,040.49, 455,377.80 and 186,800.53 is: 257,740.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,040.49 : 455,377.80 = 186,800.53 : x
  2. Step 2: Convert to fraction form
    330,040.49/455,377.80 = 186,800.53/x
  3. Step 3: Cross multiply
    330,040.49x = 455,377.80 × 186,800.53
  4. Step 4: Simplify right side
    330,040.49x = 85,064,813,755.37
  5. Step 5: Solve for x
    x = 85,064,813,755.37/330,040.49
  6. Step 6: Final answer
    x = 257,740.54

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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.