Finding the Fourth Proportional to 318,072.18, 438,934.56 and 174,829.14
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Solution
The fourth proportional to 318,072.18, 438,934.56 and 174,829.14 is: 241,261.44
Step by Step Solution
- Step 1: Write the proportion equation
318,072.18 : 438,934.56 = 174,829.14 : x - Step 2: Convert to fraction form
318,072.18/438,934.56 = 174,829.14/x - Step 3: Cross multiply
318,072.18x = 438,934.56 × 174,829.14 - Step 4: Simplify right side
318,072.18x = 76,738,551,641.08 - Step 5: Solve for x
x = 76,738,551,641.08/318,072.18 - Step 6: Final answer
x = 241,261.44
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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.