Home / 447,739.12-671,608.80-148,139.20

Finding the Fourth Proportional to 447,739.12, 671,608.80 and 148,139.20

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Solution

The fourth proportional to 447,739.12, 671,608.80 and 148,139.20 is: 222,208.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,739.12 : 671,608.80 = 148,139.20 : x
  2. Step 2: Convert to fraction form
    447,739.12/671,608.80 = 148,139.20/x
  3. Step 3: Cross multiply
    447,739.12x = 671,608.80 × 148,139.20
  4. Step 4: Simplify right side
    447,739.12x = 99,491,590,344.96
  5. Step 5: Solve for x
    x = 99,491,590,344.96/447,739.12
  6. Step 6: Final answer
    x = 222,208.84

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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.