Finding the Fourth Proportional to 210,672.99, 290,728.76 and 115,179.71
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Solution
The fourth proportional to 210,672.99, 290,728.76 and 115,179.71 is: 158,948.02
Step by Step Solution
- Step 1: Write the proportion equation
210,672.99 : 290,728.76 = 115,179.71 : x - Step 2: Convert to fraction form
210,672.99/290,728.76 = 115,179.71/x - Step 3: Cross multiply
210,672.99x = 290,728.76 × 115,179.71 - Step 4: Simplify right side
210,672.99x = 33,486,054,265.46 - Step 5: Solve for x
x = 33,486,054,265.46/210,672.99 - Step 6: Final answer
x = 158,948.02
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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.