Finding the Fourth Proportional to 320,590.92, 442,431.62 and 193,307.56
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Solution
The fourth proportional to 320,590.92, 442,431.62 and 193,307.56 is: 266,774.17
Step by Step Solution
- Step 1: Write the proportion equation
320,590.92 : 442,431.62 = 193,307.56 : x - Step 2: Convert to fraction form
320,590.92/442,431.62 = 193,307.56/x - Step 3: Cross multiply
320,590.92x = 442,431.62 × 193,307.56 - Step 4: Simplify right side
320,590.92x = 85,525,376,929.05 - Step 5: Solve for x
x = 85,525,376,929.05/320,590.92 - Step 6: Final answer
x = 266,774.17
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1.5x scale
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.