Finding the Fourth Proportional to 452,631.20, 679,020.08 and 153,129.92
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Solution
The fourth proportional to 452,631.20, 679,020.08 and 153,129.92 is: 229,719.67
Step by Step Solution
- Step 1: Write the proportion equation
452,631.20 : 679,020.08 = 153,129.92 : x - Step 2: Convert to fraction form
452,631.20/679,020.08 = 153,129.92/x - Step 3: Cross multiply
452,631.20x = 679,020.08 × 153,129.92 - Step 4: Simplify right side
452,631.20x = 103,978,290,528.79 - Step 5: Solve for x
x = 103,978,290,528.79/452,631.20 - Step 6: Final answer
x = 229,719.67
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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.