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Finding the Fourth Proportional to 296,990.69, 445,485.79 and 107,406.64

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Solution

The fourth proportional to 296,990.69, 445,485.79 and 107,406.64 is: 161,109.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,990.69 : 445,485.79 = 107,406.64 : x
  2. Step 2: Convert to fraction form
    296,990.69/445,485.79 = 107,406.64/x
  3. Step 3: Cross multiply
    296,990.69x = 445,485.79 × 107,406.64
  4. Step 4: Simplify right side
    296,990.69x = 47,848,132,562.76
  5. Step 5: Solve for x
    x = 47,848,132,562.76/296,990.69
  6. Step 6: Final answer
    x = 161,109.88

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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.