Finding the Fourth Proportional to 310,324.75, 428,248.56 and 176,188.75
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Solution
The fourth proportional to 310,324.75, 428,248.56 and 176,188.75 is: 243,140.70
Step by Step Solution
- Step 1: Write the proportion equation
310,324.75 : 428,248.56 = 176,188.75 : x - Step 2: Convert to fraction form
310,324.75/428,248.56 = 176,188.75/x - Step 3: Cross multiply
310,324.75x = 428,248.56 × 176,188.75 - Step 4: Simplify right side
310,324.75x = 75,452,578,475.70 - Step 5: Solve for x
x = 75,452,578,475.70/310,324.75 - Step 6: Final answer
x = 243,140.70
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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.