Home / 403,727.81-605,411.75-214,145.03

Finding the Fourth Proportional to 403,727.81, 605,411.75 and 214,145.03

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Solution

The fourth proportional to 403,727.81, 605,411.75 and 214,145.03 is: 321,122.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,727.81 : 605,411.75 = 214,145.03 : x
  2. Step 2: Convert to fraction form
    403,727.81/605,411.75 = 214,145.03/x
  3. Step 3: Cross multiply
    403,727.81x = 605,411.75 × 214,145.03
  4. Step 4: Simplify right side
    403,727.81x = 129,645,913,268.32
  5. Step 5: Solve for x
    x = 129,645,913,268.32/403,727.81
  6. Step 6: Final answer
    x = 321,122.08

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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.