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Finding the Fourth Proportional to 300,182.40, 450,107.28 and 122,813.92

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Solution

The fourth proportional to 300,182.40, 450,107.28 and 122,813.92 is: 184,152.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,182.40 : 450,107.28 = 122,813.92 : x
  2. Step 2: Convert to fraction form
    300,182.40/450,107.28 = 122,813.92/x
  3. Step 3: Cross multiply
    300,182.40x = 450,107.28 × 122,813.92
  4. Step 4: Simplify right side
    300,182.40x = 55,279,439,477.34
  5. Step 5: Solve for x
    x = 55,279,439,477.34/300,182.40
  6. Step 6: Final answer
    x = 184,152.83

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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.