Finding the Fourth Proportional to 417,775.76, 626,687.95 and 118,231.28
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Solution
The fourth proportional to 417,775.76, 626,687.95 and 118,231.28 is: 177,353.80
Step by Step Solution
- Step 1: Write the proportion equation
417,775.76 : 626,687.95 = 118,231.28 : x - Step 2: Convert to fraction form
417,775.76/626,687.95 = 118,231.28/x - Step 3: Cross multiply
417,775.76x = 626,687.95 × 118,231.28 - Step 4: Simplify right side
417,775.76x = 74,094,118,489.08 - Step 5: Solve for x
x = 74,094,118,489.08/417,775.76 - Step 6: Final answer
x = 177,353.80
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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.