Home / 300,208.05-450,366.65-142,435.04

Finding the Fourth Proportional to 300,208.05, 450,366.65 and 142,435.04

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Solution

The fourth proportional to 300,208.05, 450,366.65 and 142,435.04 is: 213,678.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,208.05 : 450,366.65 = 142,435.04 : x
  2. Step 2: Convert to fraction form
    300,208.05/450,366.65 = 142,435.04/x
  3. Step 3: Cross multiply
    300,208.05x = 450,366.65 × 142,435.04
  4. Step 4: Simplify right side
    300,208.05x = 64,147,988,843.41
  5. Step 5: Solve for x
    x = 64,147,988,843.41/300,208.05
  6. Step 6: Final answer
    x = 213,678.44

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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.