Finding the Fourth Proportional to 150,953.36, 208,311.26 and 86,420.44
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Solution
The fourth proportional to 150,953.36, 208,311.26 and 86,420.44 is: 119,257.70
Step by Step Solution
- Step 1: Write the proportion equation
150,953.36 : 208,311.26 = 86,420.44 : x - Step 2: Convert to fraction form
150,953.36/208,311.26 = 86,420.44/x - Step 3: Cross multiply
150,953.36x = 208,311.26 × 86,420.44 - Step 4: Simplify right side
150,953.36x = 18,002,350,746.15 - Step 5: Solve for x
x = 18,002,350,746.15/150,953.36 - Step 6: Final answer
x = 119,257.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.