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Finding the Fourth Proportional to 388,586.04, 582,880.14 and 108,103.56

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Solution

The fourth proportional to 388,586.04, 582,880.14 and 108,103.56 is: 162,155.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,586.04 : 582,880.14 = 108,103.56 : x
  2. Step 2: Convert to fraction form
    388,586.04/582,880.14 = 108,103.56/x
  3. Step 3: Cross multiply
    388,586.04x = 582,880.14 × 108,103.56
  4. Step 4: Simplify right side
    388,586.04x = 63,011,418,187.30
  5. Step 5: Solve for x
    x = 63,011,418,187.30/388,586.04
  6. Step 6: Final answer
    x = 162,155.64

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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.