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Finding the Fourth Proportional to 321,124.40, 481,686.60 and 227,812.40

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Solution

The fourth proportional to 321,124.40, 481,686.60 and 227,812.40 is: 341,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,124.40 : 481,686.60 = 227,812.40 : x
  2. Step 2: Convert to fraction form
    321,124.40/481,686.60 = 227,812.40/x
  3. Step 3: Cross multiply
    321,124.40x = 481,686.60 × 227,812.40
  4. Step 4: Simplify right side
    321,124.40x = 109,734,180,393.84
  5. Step 5: Solve for x
    x = 109,734,180,393.84/321,124.40
  6. Step 6: Final answer
    x = 341,718.60

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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.