Finding the Fourth Proportional to 261,484.80, 392,437.39 and 135,162.08
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Solution
The fourth proportional to 261,484.80, 392,437.39 and 135,162.08 is: 202,851.77
Step by Step Solution
- Step 1: Write the proportion equation
261,484.80 : 392,437.39 = 135,162.08 : x - Step 2: Convert to fraction form
261,484.80/392,437.39 = 135,162.08/x - Step 3: Cross multiply
261,484.80x = 392,437.39 × 135,162.08 - Step 4: Simplify right side
261,484.80x = 53,042,653,902.17 - Step 5: Solve for x
x = 53,042,653,902.17/261,484.80 - Step 6: Final answer
x = 202,851.77
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1.5x scale
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.