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Finding the Fourth Proportional to 100,293.69, 150,450.12 and 28,246.42

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Solution

The fourth proportional to 100,293.69, 150,450.12 and 28,246.42 is: 42,372.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,293.69 : 150,450.12 = 28,246.42 : x
  2. Step 2: Convert to fraction form
    100,293.69/150,450.12 = 28,246.42/x
  3. Step 3: Cross multiply
    100,293.69x = 150,450.12 × 28,246.42
  4. Step 4: Simplify right side
    100,293.69x = 4,249,677,278.57
  5. Step 5: Solve for x
    x = 4,249,677,278.57/100,293.69
  6. Step 6: Final answer
    x = 42,372.33

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1.5x scale

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.