Finding the Fourth Proportional to 302,425.20, 453,637.80 and 209,113.20
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Solution
The fourth proportional to 302,425.20, 453,637.80 and 209,113.20 is: 313,669.80
Step by Step Solution
- Step 1: Write the proportion equation
302,425.20 : 453,637.80 = 209,113.20 : x - Step 2: Convert to fraction form
302,425.20/453,637.80 = 209,113.20/x - Step 3: Cross multiply
302,425.20x = 453,637.80 × 209,113.20 - Step 4: Simplify right side
302,425.20x = 94,861,651,998.96 - Step 5: Solve for x
x = 94,861,651,998.96/302,425.20 - Step 6: Final answer
x = 313,669.80
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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.