Finding the Fourth Proportional to 208,405.10, 312,607.65 and 97,813.10
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Solution
The fourth proportional to 208,405.10, 312,607.65 and 97,813.10 is: 146,719.65
Step by Step Solution
- Step 1: Write the proportion equation
208,405.10 : 312,607.65 = 97,813.10 : x - Step 2: Convert to fraction form
208,405.10/312,607.65 = 97,813.10/x - Step 3: Cross multiply
208,405.10x = 312,607.65 × 97,813.10 - Step 4: Simplify right side
208,405.10x = 30,577,123,330.22 - Step 5: Solve for x
x = 30,577,123,330.22/208,405.10 - Step 6: Final answer
x = 146,719.65
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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.