Finding the Fourth Proportional to 187,619.79, 258,954.42 and 172,488.49
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Solution
The fourth proportional to 187,619.79, 258,954.42 and 172,488.49 is: 238,070.07
Step by Step Solution
- Step 1: Write the proportion equation
187,619.79 : 258,954.42 = 172,488.49 : x - Step 2: Convert to fraction form
187,619.79/258,954.42 = 172,488.49/x - Step 3: Cross multiply
187,619.79x = 258,954.42 × 172,488.49 - Step 4: Simplify right side
187,619.79x = 44,666,656,884.63 - Step 5: Solve for x
x = 44,666,656,884.63/187,619.79 - Step 6: Final answer
x = 238,070.07
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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.