Finding the Fourth Proportional to 278,902.20, 418,471.68 and 152,394.68
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Solution
The fourth proportional to 278,902.20, 418,471.68 and 152,394.68 is: 228,656.70
Step by Step Solution
- Step 1: Write the proportion equation
278,902.20 : 418,471.68 = 152,394.68 : x - Step 2: Convert to fraction form
278,902.20/418,471.68 = 152,394.68/x - Step 3: Cross multiply
278,902.20x = 418,471.68 × 152,394.68 - Step 4: Simplify right side
278,902.20x = 63,772,855,670.30 - Step 5: Solve for x
x = 63,772,855,670.30/278,902.20 - Step 6: Final answer
x = 228,656.70
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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.