Home / 447,186.42-670,784.49-131,649.30

Finding the Fourth Proportional to 447,186.42, 670,784.49 and 131,649.30

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Solution

The fourth proportional to 447,186.42, 670,784.49 and 131,649.30 is: 197,475.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,186.42 : 670,784.49 = 131,649.30 : x
  2. Step 2: Convert to fraction form
    447,186.42/670,784.49 = 131,649.30/x
  3. Step 3: Cross multiply
    447,186.42x = 670,784.49 × 131,649.30
  4. Step 4: Simplify right side
    447,186.42x = 88,308,308,559.36
  5. Step 5: Solve for x
    x = 88,308,308,559.36/447,186.42
  6. Step 6: Final answer
    x = 197,475.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.