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Finding the Fourth Proportional to 322,889.53, 484,329.43 and 145,271.11

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Solution

The fourth proportional to 322,889.53, 484,329.43 and 145,271.11 is: 217,904.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,889.53 : 484,329.43 = 145,271.11 : x
  2. Step 2: Convert to fraction form
    322,889.53/484,329.43 = 145,271.11/x
  3. Step 3: Cross multiply
    322,889.53x = 484,329.43 × 145,271.11
  4. Step 4: Simplify right side
    322,889.53x = 70,359,073,175.41
  5. Step 5: Solve for x
    x = 70,359,073,175.41/322,889.53
  6. Step 6: Final answer
    x = 217,904.47

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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.