Finding the Fourth Proportional to 238,347.15, 328,921.44 and 129,453.62
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Solution
The fourth proportional to 238,347.15, 328,921.44 and 129,453.62 is: 178,647.28
Step by Step Solution
- Step 1: Write the proportion equation
238,347.15 : 328,921.44 = 129,453.62 : x - Step 2: Convert to fraction form
238,347.15/328,921.44 = 129,453.62/x - Step 3: Cross multiply
238,347.15x = 328,921.44 × 129,453.62 - Step 4: Simplify right side
238,347.15x = 42,580,069,459.01 - Step 5: Solve for x
x = 42,580,069,459.01/238,347.15 - Step 6: Final answer
x = 178,647.28
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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.