Finding the Fourth Proportional to 286,916.48, 395,913.12 and 166,034.24
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Solution
The fourth proportional to 286,916.48, 395,913.12 and 166,034.24 is: 229,108.95
Step by Step Solution
- Step 1: Write the proportion equation
286,916.48 : 395,913.12 = 166,034.24 : x - Step 2: Convert to fraction form
286,916.48/395,913.12 = 166,034.24/x - Step 3: Cross multiply
286,916.48x = 395,913.12 × 166,034.24 - Step 4: Simplify right side
286,916.48x = 65,735,133,985.23 - Step 5: Solve for x
x = 65,735,133,985.23/286,916.48 - Step 6: Final answer
x = 229,108.95
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1.5x scale
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.