Finding the Fourth Proportional to 306,536.70, 459,805.05 and 84,920.70
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Solution
The fourth proportional to 306,536.70, 459,805.05 and 84,920.70 is: 127,381.05
Step by Step Solution
- Step 1: Write the proportion equation
306,536.70 : 459,805.05 = 84,920.70 : x - Step 2: Convert to fraction form
306,536.70/459,805.05 = 84,920.70/x - Step 3: Cross multiply
306,536.70x = 459,805.05 × 84,920.70 - Step 4: Simplify right side
306,536.70x = 39,046,966,709.54 - Step 5: Solve for x
x = 39,046,966,709.54/306,536.70 - Step 6: Final answer
x = 127,381.05
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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.