Finding the Fourth Proportional to 181,149.36, 249,984.99 and 99,478.68
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Solution
The fourth proportional to 181,149.36, 249,984.99 and 99,478.68 is: 137,279.96
Step by Step Solution
- Step 1: Write the proportion equation
181,149.36 : 249,984.99 = 99,478.68 : x - Step 2: Convert to fraction form
181,149.36/249,984.99 = 99,478.68/x - Step 3: Cross multiply
181,149.36x = 249,984.99 × 99,478.68 - Step 4: Simplify right side
181,149.36x = 24,868,176,825.01 - Step 5: Solve for x
x = 24,868,176,825.01/181,149.36 - Step 6: Final answer
x = 137,279.96
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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.