Home / 461,282.36-691,919.42-145,739.25

Finding the Fourth Proportional to 461,282.36, 691,919.42 and 145,739.25

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Solution

The fourth proportional to 461,282.36, 691,919.42 and 145,739.25 is: 218,607.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,282.36 : 691,919.42 = 145,739.25 : x
  2. Step 2: Convert to fraction form
    461,282.36/691,919.42 = 145,739.25/x
  3. Step 3: Cross multiply
    461,282.36x = 691,919.42 × 145,739.25
  4. Step 4: Simplify right side
    461,282.36x = 100,839,816,602.54
  5. Step 5: Solve for x
    x = 100,839,816,602.54/461,282.36
  6. Step 6: Final answer
    x = 218,607.57

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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.