Finding the Fourth Proportional to 319,277.80, 478,673.70 and 161,619.40
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Solution
The fourth proportional to 319,277.80, 478,673.70 and 161,619.40 is: 242,306.09
Step by Step Solution
- Step 1: Write the proportion equation
319,277.80 : 478,673.70 = 161,619.40 : x - Step 2: Convert to fraction form
319,277.80/478,673.70 = 161,619.40/x - Step 3: Cross multiply
319,277.80x = 478,673.70 × 161,619.40 - Step 4: Simplify right side
319,277.80x = 77,362,956,189.78 - Step 5: Solve for x
x = 77,362,956,189.78/319,277.80 - Step 6: Final answer
x = 242,306.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.