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Finding the Fourth Proportional to 608,054.40, 911,819.16 and 187,236.72

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Solution

The fourth proportional to 608,054.40, 911,819.16 and 187,236.72 is: 280,774.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,054.40 : 911,819.16 = 187,236.72 : x
  2. Step 2: Convert to fraction form
    608,054.40/911,819.16 = 187,236.72/x
  3. Step 3: Cross multiply
    608,054.40x = 911,819.16 × 187,236.72
  4. Step 4: Simplify right side
    608,054.40x = 170,726,028,751.56
  5. Step 5: Solve for x
    x = 170,726,028,751.56/608,054.40
  6. Step 6: Final answer
    x = 280,774.27

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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.