Finding the Fourth Proportional to 320,699.79, 480,971.93 and 133,609.23
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Solution
The fourth proportional to 320,699.79, 480,971.93 and 133,609.23 is: 200,381.45
Step by Step Solution
- Step 1: Write the proportion equation
320,699.79 : 480,971.93 = 133,609.23 : x - Step 2: Convert to fraction form
320,699.79/480,971.93 = 133,609.23/x - Step 3: Cross multiply
320,699.79x = 480,971.93 × 133,609.23 - Step 4: Simplify right side
320,699.79x = 64,262,288,550.87 - Step 5: Solve for x
x = 64,262,288,550.87/320,699.79 - Step 6: Final answer
x = 200,381.45
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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.