Finding the Fourth Proportional to 258,272.15, 387,991.42 and 153,160.07
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Solution
The fourth proportional to 258,272.15, 387,991.42 and 153,160.07 is: 230,085.95
Step by Step Solution
- Step 1: Write the proportion equation
258,272.15 : 387,991.42 = 153,160.07 : x - Step 2: Convert to fraction form
258,272.15/387,991.42 = 153,160.07/x - Step 3: Cross multiply
258,272.15x = 387,991.42 × 153,160.07 - Step 4: Simplify right side
258,272.15x = 59,424,790,723.74 - Step 5: Solve for x
x = 59,424,790,723.74/258,272.15 - Step 6: Final answer
x = 230,085.95
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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.