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Finding the Fourth Proportional to 440,228.63, 660,310.66 and 140,628.77

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Solution

The fourth proportional to 440,228.63, 660,310.66 and 140,628.77 is: 210,932.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,228.63 : 660,310.66 = 140,628.77 : x
  2. Step 2: Convert to fraction form
    440,228.63/660,310.66 = 140,628.77/x
  3. Step 3: Cross multiply
    440,228.63x = 660,310.66 × 140,628.77
  4. Step 4: Simplify right side
    440,228.63x = 92,858,677,232.89
  5. Step 5: Solve for x
    x = 92,858,677,232.89/440,228.63
  6. Step 6: Final answer
    x = 210,932.84

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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.