Home / 300,621.23-450,973.35-100,998.69

Finding the Fourth Proportional to 300,621.23, 450,973.35 and 100,998.69

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Solution

The fourth proportional to 300,621.23, 450,973.35 and 100,998.69 is: 151,511.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,621.23 : 450,973.35 = 100,998.69 : x
  2. Step 2: Convert to fraction form
    300,621.23/450,973.35 = 100,998.69/x
  3. Step 3: Cross multiply
    300,621.23x = 450,973.35 × 100,998.69
  4. Step 4: Simplify right side
    300,621.23x = 45,547,717,069.92
  5. Step 5: Solve for x
    x = 45,547,717,069.92/300,621.23
  6. Step 6: Final answer
    x = 151,511.98

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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.