Finding the Fourth Proportional to 310,488.08, 428,222.94 and 208,482.80
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Solution
The fourth proportional to 310,488.08, 428,222.94 and 208,482.80 is: 287,537.99
Step by Step Solution
- Step 1: Write the proportion equation
310,488.08 : 428,222.94 = 208,482.80 : x - Step 2: Convert to fraction form
310,488.08/428,222.94 = 208,482.80/x - Step 3: Cross multiply
310,488.08x = 428,222.94 × 208,482.80 - Step 4: Simplify right side
310,488.08x = 89,277,117,555.43 - Step 5: Solve for x
x = 89,277,117,555.43/310,488.08 - Step 6: Final answer
x = 287,537.99
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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.