Finding the Fourth Proportional to 279,521.40, 385,735.68 and 152,196.99
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Solution
The fourth proportional to 279,521.40, 385,735.68 and 152,196.99 is: 210,029.75
Step by Step Solution
- Step 1: Write the proportion equation
279,521.40 : 385,735.68 = 152,196.99 : x - Step 2: Convert to fraction form
279,521.40/385,735.68 = 152,196.99/x - Step 3: Cross multiply
279,521.40x = 385,735.68 × 152,196.99 - Step 4: Simplify right side
279,521.40x = 58,707,809,431.60 - Step 5: Solve for x
x = 58,707,809,431.60/279,521.40 - Step 6: Final answer
x = 210,029.75
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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.