Finding the Fourth Proportional to 310,685.97, 428,742.56 and 174,719.88
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Solution
The fourth proportional to 310,685.97, 428,742.56 and 174,719.88 is: 241,111.14
Step by Step Solution
- Step 1: Write the proportion equation
310,685.97 : 428,742.56 = 174,719.88 : x - Step 2: Convert to fraction form
310,685.97/428,742.56 = 174,719.88/x - Step 3: Cross multiply
310,685.97x = 428,742.56 × 174,719.88 - Step 4: Simplify right side
310,685.97x = 74,909,849,269.15 - Step 5: Solve for x
x = 74,909,849,269.15/310,685.97 - Step 6: Final answer
x = 241,111.14
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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.