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Finding the Fourth Proportional to 350,990.56, 526,563.60 and 163,900

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Solution

The fourth proportional to 350,990.56, 526,563.60 and 163,900 is: 245,886.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,990.56 : 526,563.60 = 163,900 : x
  2. Step 2: Convert to fraction form
    350,990.56/526,563.60 = 163,900/x
  3. Step 3: Cross multiply
    350,990.56x = 526,563.60 × 163,900
  4. Step 4: Simplify right side
    350,990.56x = 86,303,774,040
  5. Step 5: Solve for x
    x = 86,303,774,040/350,990.56
  6. Step 6: Final answer
    x = 245,886.31

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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.