Home / 330,139.94-455,588.70-186,896.30

Finding the Fourth Proportional to 330,139.94, 455,588.70 and 186,896.30

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Solution

The fourth proportional to 330,139.94, 455,588.70 and 186,896.30 is: 257,914.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,139.94 : 455,588.70 = 186,896.30 : x
  2. Step 2: Convert to fraction form
    330,139.94/455,588.70 = 186,896.30/x
  3. Step 3: Cross multiply
    330,139.94x = 455,588.70 × 186,896.30
  4. Step 4: Simplify right side
    330,139.94x = 85,147,842,351.81
  5. Step 5: Solve for x
    x = 85,147,842,351.81/330,139.94
  6. Step 6: Final answer
    x = 257,914.39

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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.