Finding the Fourth Proportional to 319,551.08, 441,140.28 and 198,731.28
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Solution
The fourth proportional to 319,551.08, 441,140.28 and 198,731.28 is: 274,348.55
Step by Step Solution
- Step 1: Write the proportion equation
319,551.08 : 441,140.28 = 198,731.28 : x - Step 2: Convert to fraction form
319,551.08/441,140.28 = 198,731.28/x - Step 3: Cross multiply
319,551.08x = 441,140.28 × 198,731.28 - Step 4: Simplify right side
319,551.08x = 87,668,372,503.96 - Step 5: Solve for x
x = 87,668,372,503.96/319,551.08 - Step 6: Final answer
x = 274,348.55
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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.