Home / 330,135.09-455,588.31-194,174.76

Finding the Fourth Proportional to 330,135.09, 455,588.31 and 194,174.76

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Solution

The fourth proportional to 330,135.09, 455,588.31 and 194,174.76 is: 267,962.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,135.09 : 455,588.31 = 194,174.76 : x
  2. Step 2: Convert to fraction form
    330,135.09/455,588.31 = 194,174.76/x
  3. Step 3: Cross multiply
    330,135.09x = 455,588.31 × 194,174.76
  4. Step 4: Simplify right side
    330,135.09x = 88,463,750,753.06
  5. Step 5: Solve for x
    x = 88,463,750,753.06/330,135.09
  6. Step 6: Final answer
    x = 267,962.28

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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.