Finding the Fourth Proportional to 317,461.30, 438,116.28 and 209,844.70
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Solution
The fourth proportional to 317,461.30, 438,116.28 and 209,844.70 is: 289,598.70
Step by Step Solution
- Step 1: Write the proportion equation
317,461.30 : 438,116.28 = 209,844.70 : x - Step 2: Convert to fraction form
317,461.30/438,116.28 = 209,844.70/x - Step 3: Cross multiply
317,461.30x = 438,116.28 × 209,844.70 - Step 4: Simplify right side
317,461.30x = 91,936,379,341.72 - Step 5: Solve for x
x = 91,936,379,341.72/317,461.30 - Step 6: Final answer
x = 289,598.70
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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.