Home / 300,810.24-415,134.72-166,671.36

Finding the Fourth Proportional to 300,810.24, 415,134.72 and 166,671.36

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Solution

The fourth proportional to 300,810.24, 415,134.72 and 166,671.36 is: 230,015.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,810.24 : 415,134.72 = 166,671.36 : x
  2. Step 2: Convert to fraction form
    300,810.24/415,134.72 = 166,671.36/x
  3. Step 3: Cross multiply
    300,810.24x = 415,134.72 × 166,671.36
  4. Step 4: Simplify right side
    300,810.24x = 69,191,068,365.62
  5. Step 5: Solve for x
    x = 69,191,068,365.62/300,810.24
  6. Step 6: Final answer
    x = 230,015.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.