Finding the Fourth Proportional to 408,474.30, 563,539.91 and 253,353.84
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Solution
The fourth proportional to 408,474.30, 563,539.91 and 253,353.84 is: 349,532.39
Step by Step Solution
- Step 1: Write the proportion equation
408,474.30 : 563,539.91 = 253,353.84 : x - Step 2: Convert to fraction form
408,474.30/563,539.91 = 253,353.84/x - Step 3: Cross multiply
408,474.30x = 563,539.91 × 253,353.84 - Step 4: Simplify right side
408,474.30x = 142,775,000,191.75 - Step 5: Solve for x
x = 142,775,000,191.75/408,474.30 - Step 6: Final answer
x = 349,532.39
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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.