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Finding the Fourth Proportional to 440,039.66, 659,953.76 and 203,154.78

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Solution

The fourth proportional to 440,039.66, 659,953.76 and 203,154.78 is: 304,683.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,039.66 : 659,953.76 = 203,154.78 : x
  2. Step 2: Convert to fraction form
    440,039.66/659,953.76 = 203,154.78/x
  3. Step 3: Cross multiply
    440,039.66x = 659,953.76 × 203,154.78
  4. Step 4: Simplify right side
    440,039.66x = 134,072,760,922.97
  5. Step 5: Solve for x
    x = 134,072,760,922.97/440,039.66
  6. Step 6: Final answer
    x = 304,683.36

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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.