Finding the Fourth Proportional to 391,115.60, 586,212.60 and 204,030.80
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Solution
The fourth proportional to 391,115.60, 586,212.60 and 204,030.80 is: 305,805.82
Step by Step Solution
- Step 1: Write the proportion equation
391,115.60 : 586,212.60 = 204,030.80 : x - Step 2: Convert to fraction form
391,115.60/586,212.60 = 204,030.80/x - Step 3: Cross multiply
391,115.60x = 586,212.60 × 204,030.80 - Step 4: Simplify right side
391,115.60x = 119,605,425,748.08 - Step 5: Solve for x
x = 119,605,425,748.08/391,115.60 - Step 6: Final answer
x = 305,805.82
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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.