Finding the Fourth Proportional to 161,478.08, 242,271.50 and 71,508.49
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Solution
The fourth proportional to 161,478.08, 242,271.50 and 71,508.49 is: 107,286.82
Step by Step Solution
- Step 1: Write the proportion equation
161,478.08 : 242,271.50 = 71,508.49 : x - Step 2: Convert to fraction form
161,478.08/242,271.50 = 71,508.49/x - Step 3: Cross multiply
161,478.08x = 242,271.50 × 71,508.49 - Step 4: Simplify right side
161,478.08x = 17,324,470,027.63 - Step 5: Solve for x
x = 17,324,470,027.63/161,478.08 - Step 6: Final answer
x = 107,286.82
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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.