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Finding the Fourth Proportional to 187,240.40, 280,860.60 and 163,912.40

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Solution

The fourth proportional to 187,240.40, 280,860.60 and 163,912.40 is: 245,868.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,240.40 : 280,860.60 = 163,912.40 : x
  2. Step 2: Convert to fraction form
    187,240.40/280,860.60 = 163,912.40/x
  3. Step 3: Cross multiply
    187,240.40x = 280,860.60 × 163,912.40
  4. Step 4: Simplify right side
    187,240.40x = 46,036,535,011.44
  5. Step 5: Solve for x
    x = 46,036,535,011.44/187,240.40
  6. Step 6: Final answer
    x = 245,868.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.