Finding the Fourth Proportional to 511,911.92, 767,979.93 and 156,953.63
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Solution
The fourth proportional to 511,911.92, 767,979.93 and 156,953.63 is: 235,464.80
Step by Step Solution
- Step 1: Write the proportion equation
511,911.92 : 767,979.93 = 156,953.63 : x - Step 2: Convert to fraction form
511,911.92/767,979.93 = 156,953.63/x - Step 3: Cross multiply
511,911.92x = 767,979.93 × 156,953.63 - Step 4: Simplify right side
511,911.92x = 120,537,237,780.65 - Step 5: Solve for x
x = 120,537,237,780.65/511,911.92 - Step 6: Final answer
x = 235,464.80
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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.