Finding the Fourth Proportional to 287,731.08, 431,295.60 and 98,124.99
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Solution
The fourth proportional to 287,731.08, 431,295.60 and 98,124.99 is: 147,084.83
Step by Step Solution
- Step 1: Write the proportion equation
287,731.08 : 431,295.60 = 98,124.99 : x - Step 2: Convert to fraction form
287,731.08/431,295.60 = 98,124.99/x - Step 3: Cross multiply
287,731.08x = 431,295.60 × 98,124.99 - Step 4: Simplify right side
287,731.08x = 42,320,876,437.04 - Step 5: Solve for x
x = 42,320,876,437.04/287,731.08 - Step 6: Final answer
x = 147,084.83
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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.