Finding the Fourth Proportional to 153,242.14, 211,403.19 and 89,582.62
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Solution
The fourth proportional to 153,242.14, 211,403.19 and 89,582.62 is: 123,582.53
Step by Step Solution
- Step 1: Write the proportion equation
153,242.14 : 211,403.19 = 89,582.62 : x - Step 2: Convert to fraction form
153,242.14/211,403.19 = 89,582.62/x - Step 3: Cross multiply
153,242.14x = 211,403.19 × 89,582.62 - Step 4: Simplify right side
153,242.14x = 18,938,051,636.56 - Step 5: Solve for x
x = 18,938,051,636.56/153,242.14 - Step 6: Final answer
x = 123,582.53
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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.