Finding the Fourth Proportional to 289,149.49, 399,056.12 and 166,646.17
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Solution
The fourth proportional to 289,149.49, 399,056.12 and 166,646.17 is: 229,988.90
Step by Step Solution
- Step 1: Write the proportion equation
289,149.49 : 399,056.12 = 166,646.17 : x - Step 2: Convert to fraction form
289,149.49/399,056.12 = 166,646.17/x - Step 3: Cross multiply
289,149.49x = 399,056.12 × 166,646.17 - Step 4: Simplify right side
289,149.49x = 66,501,174,013.06 - Step 5: Solve for x
x = 66,501,174,013.06/289,149.49 - Step 6: Final answer
x = 229,988.90
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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.