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Finding the Fourth Proportional to 300,807.77, 451,219.53 and 87,567.06

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Solution

The fourth proportional to 300,807.77, 451,219.53 and 87,567.06 is: 131,352.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,807.77 : 451,219.53 = 87,567.06 : x
  2. Step 2: Convert to fraction form
    300,807.77/451,219.53 = 87,567.06/x
  3. Step 3: Cross multiply
    300,807.77x = 451,219.53 × 87,567.06
  4. Step 4: Simplify right side
    300,807.77x = 39,511,967,656.68
  5. Step 5: Solve for x
    x = 39,511,967,656.68/300,807.77
  6. Step 6: Final answer
    x = 131,352.88

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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.