Finding the Fourth Proportional to 311,842.20, 466,985.70 and 249,634.20
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Solution
The fourth proportional to 311,842.20, 466,985.70 and 249,634.20 is: 373,828.82
Step by Step Solution
- Step 1: Write the proportion equation
311,842.20 : 466,985.70 = 249,634.20 : x - Step 2: Convert to fraction form
311,842.20/466,985.70 = 249,634.20/x - Step 3: Cross multiply
311,842.20x = 466,985.70 × 249,634.20 - Step 4: Simplify right side
311,842.20x = 116,575,601,630.94 - Step 5: Solve for x
x = 116,575,601,630.94/311,842.20 - Step 6: Final answer
x = 373,828.82
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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.