Finding the Fourth Proportional to 438,416.96, 657,655.12 and 154,072.94
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Solution
The fourth proportional to 438,416.96, 657,655.12 and 154,072.94 is: 231,119.84
Step by Step Solution
- Step 1: Write the proportion equation
438,416.96 : 657,655.12 = 154,072.94 : x - Step 2: Convert to fraction form
438,416.96/657,655.12 = 154,072.94/x - Step 3: Cross multiply
438,416.96x = 657,655.12 × 154,072.94 - Step 4: Simplify right side
438,416.96x = 101,326,857,844.45 - Step 5: Solve for x
x = 101,326,857,844.45/438,416.96 - Step 6: Final answer
x = 231,119.84
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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.