Finding the Fourth Proportional to 310,808.18, 428,913.33 and 176,672.18
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Solution
The fourth proportional to 310,808.18, 428,913.33 and 176,672.18 is: 243,806.50
Step by Step Solution
- Step 1: Write the proportion equation
310,808.18 : 428,913.33 = 176,672.18 : x - Step 2: Convert to fraction form
310,808.18/428,913.33 = 176,672.18/x - Step 3: Cross multiply
310,808.18x = 428,913.33 × 176,672.18 - Step 4: Simplify right side
310,808.18x = 75,777,053,042.16 - Step 5: Solve for x
x = 75,777,053,042.16/310,808.18 - Step 6: Final answer
x = 243,806.50
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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.