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Finding the Fourth Proportional to 300,252.75, 450,124.75 and 131,645.29

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Solution

The fourth proportional to 300,252.75, 450,124.75 and 131,645.29 is: 197,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,252.75 : 450,124.75 = 131,645.29 : x
  2. Step 2: Convert to fraction form
    300,252.75/450,124.75 = 131,645.29/x
  3. Step 3: Cross multiply
    300,252.75x = 450,124.75 × 131,645.29
  4. Step 4: Simplify right side
    300,252.75x = 59,256,803,249.93
  5. Step 5: Solve for x
    x = 59,256,803,249.93/300,252.75
  6. Step 6: Final answer
    x = 197,356.40

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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.