Finding the Fourth Proportional to 390,757.21, 586,135.82 and 110,274.46
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Solution
The fourth proportional to 390,757.21, 586,135.82 and 110,274.46 is: 165,411.69
Step by Step Solution
- Step 1: Write the proportion equation
390,757.21 : 586,135.82 = 110,274.46 : x - Step 2: Convert to fraction form
390,757.21/586,135.82 = 110,274.46/x - Step 3: Cross multiply
390,757.21x = 586,135.82 × 110,274.46 - Step 4: Simplify right side
390,757.21x = 64,635,812,834.37 - Step 5: Solve for x
x = 64,635,812,834.37/390,757.21 - Step 6: Final answer
x = 165,411.69
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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.