Finding the Fourth Proportional to 208,971.91, 288,384.67 and 118,325.49
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Solution
The fourth proportional to 208,971.91, 288,384.67 and 118,325.49 is: 163,291.12
Step by Step Solution
- Step 1: Write the proportion equation
208,971.91 : 288,384.67 = 118,325.49 : x - Step 2: Convert to fraction form
208,971.91/288,384.67 = 118,325.49/x - Step 3: Cross multiply
208,971.91x = 288,384.67 × 118,325.49 - Step 4: Simplify right side
208,971.91x = 34,123,257,386.24 - Step 5: Solve for x
x = 34,123,257,386.24/208,971.91 - Step 6: Final answer
x = 163,291.12
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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.