Home / 330,118.09-455,564.85-194,157.76

Finding the Fourth Proportional to 330,118.09, 455,564.85 and 194,157.76

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Solution

The fourth proportional to 330,118.09, 455,564.85 and 194,157.76 is: 267,938.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,118.09 : 455,564.85 = 194,157.76 : x
  2. Step 2: Convert to fraction form
    330,118.09/455,564.85 = 194,157.76/x
  3. Step 3: Cross multiply
    330,118.09x = 455,564.85 × 194,157.76
  4. Step 4: Simplify right side
    330,118.09x = 88,451,450,810.74
  5. Step 5: Solve for x
    x = 88,451,450,810.74/330,118.09
  6. Step 6: Final answer
    x = 267,938.82

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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.