Finding the Fourth Proportional to 485,390.70, 727,992.09 and 148,349.70
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Solution
The fourth proportional to 485,390.70, 727,992.09 and 148,349.70 is: 222,495.83
Step by Step Solution
- Step 1: Write the proportion equation
485,390.70 : 727,992.09 = 148,349.70 : x - Step 2: Convert to fraction form
485,390.70/727,992.09 = 148,349.70/x - Step 3: Cross multiply
485,390.70x = 727,992.09 × 148,349.70 - Step 4: Simplify right side
485,390.70x = 107,997,408,153.87 - Step 5: Solve for x
x = 107,997,408,153.87/485,390.70 - Step 6: Final answer
x = 222,495.83
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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.