Finding the Fourth Proportional to 199,889.34, 299,917.12 and 87,511.70
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Solution
The fourth proportional to 199,889.34, 299,917.12 and 87,511.70 is: 131,303.94
Step by Step Solution
- Step 1: Write the proportion equation
199,889.34 : 299,917.12 = 87,511.70 : x - Step 2: Convert to fraction form
199,889.34/299,917.12 = 87,511.70/x - Step 3: Cross multiply
199,889.34x = 299,917.12 × 87,511.70 - Step 4: Simplify right side
199,889.34x = 26,246,257,030.30 - Step 5: Solve for x
x = 26,246,257,030.30/199,889.34 - Step 6: Final answer
x = 131,303.94
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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.