Finding the Fourth Proportional to 379,813.14, 569,509.53 and 155,331.23
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Solution
The fourth proportional to 379,813.14, 569,509.53 and 155,331.23 is: 232,910.88
Step by Step Solution
- Step 1: Write the proportion equation
379,813.14 : 569,509.53 = 155,331.23 : x - Step 2: Convert to fraction form
379,813.14/569,509.53 = 155,331.23/x - Step 3: Cross multiply
379,813.14x = 569,509.53 × 155,331.23 - Step 4: Simplify right side
379,813.14x = 88,462,612,944.07 - Step 5: Solve for x
x = 88,462,612,944.07/379,813.14 - Step 6: Final answer
x = 232,910.88
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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.