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Finding the Fourth Proportional to 440,145.36, 660,254.76 and 140,668.56

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Solution

The fourth proportional to 440,145.36, 660,254.76 and 140,668.56 is: 211,014.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,145.36 : 660,254.76 = 140,668.56 : x
  2. Step 2: Convert to fraction form
    440,145.36/660,254.76 = 140,668.56/x
  3. Step 3: Cross multiply
    440,145.36x = 660,254.76 × 140,668.56
  4. Step 4: Simplify right side
    440,145.36x = 92,877,086,322.35
  5. Step 5: Solve for x
    x = 92,877,086,322.35/440,145.36
  6. Step 6: Final answer
    x = 211,014.58

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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.