Finding the Fourth Proportional to 303,484.80, 455,430.36 and 125,991.96
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Solution
The fourth proportional to 303,484.80, 455,430.36 and 125,991.96 is: 189,072.28
Step by Step Solution
- Step 1: Write the proportion equation
303,484.80 : 455,430.36 = 125,991.96 : x - Step 2: Convert to fraction form
303,484.80/455,430.36 = 125,991.96/x - Step 3: Cross multiply
303,484.80x = 455,430.36 × 125,991.96 - Step 4: Simplify right side
303,484.80x = 57,380,563,699.91 - Step 5: Solve for x
x = 57,380,563,699.91/303,484.80 - Step 6: Final answer
x = 189,072.28
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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.