Finding the Fourth Proportional to 307,020.97, 460,309.11 and 129,430.50
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Solution
The fourth proportional to 307,020.97, 460,309.11 and 129,430.50 is: 194,052.01
Step by Step Solution
- Step 1: Write the proportion equation
307,020.97 : 460,309.11 = 129,430.50 : x - Step 2: Convert to fraction form
307,020.97/460,309.11 = 129,430.50/x - Step 3: Cross multiply
307,020.97x = 460,309.11 × 129,430.50 - Step 4: Simplify right side
307,020.97x = 59,578,035,960.31 - Step 5: Solve for x
x = 59,578,035,960.31/307,020.97 - Step 6: Final answer
x = 194,052.01
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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.