Finding the Fourth Proportional to 261,658.60, 392,948.70 and 202,637.80
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Solution
The fourth proportional to 261,658.60, 392,948.70 and 202,637.80 is: 304,313.56
Step by Step Solution
- Step 1: Write the proportion equation
261,658.60 : 392,948.70 = 202,637.80 : x - Step 2: Convert to fraction form
261,658.60/392,948.70 = 202,637.80/x - Step 3: Cross multiply
261,658.60x = 392,948.70 × 202,637.80 - Step 4: Simplify right side
261,658.60x = 79,626,260,080.86 - Step 5: Solve for x
x = 79,626,260,080.86/261,658.60 - Step 6: Final answer
x = 304,313.56
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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.