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Finding the Fourth Proportional to 300,393.68, 450,590.52 and 120,474.32

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Solution

The fourth proportional to 300,393.68, 450,590.52 and 120,474.32 is: 180,711.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,393.68 : 450,590.52 = 120,474.32 : x
  2. Step 2: Convert to fraction form
    300,393.68/450,590.52 = 120,474.32/x
  3. Step 3: Cross multiply
    300,393.68x = 450,590.52 × 120,474.32
  4. Step 4: Simplify right side
    300,393.68x = 54,284,586,495.45
  5. Step 5: Solve for x
    x = 54,284,586,495.45/300,393.68
  6. Step 6: Final answer
    x = 180,711.48

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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.