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Finding the Fourth Proportional to 608,145.40, 911,912.10 and 187,366.60

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Solution

The fourth proportional to 608,145.40, 911,912.10 and 187,366.60 is: 280,955.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,145.40 : 911,912.10 = 187,366.60 : x
  2. Step 2: Convert to fraction form
    608,145.40/911,912.10 = 187,366.60/x
  3. Step 3: Cross multiply
    608,145.40x = 911,912.10 × 187,366.60
  4. Step 4: Simplify right side
    608,145.40x = 170,861,869,675.86
  5. Step 5: Solve for x
    x = 170,861,869,675.86/608,145.40
  6. Step 6: Final answer
    x = 280,955.62

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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.