Finding the Fourth Proportional to 311,497.62, 429,866.87 and 168,257.66
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Solution
The fourth proportional to 311,497.62, 429,866.87 and 168,257.66 is: 232,195.65
Step by Step Solution
- Step 1: Write the proportion equation
311,497.62 : 429,866.87 = 168,257.66 : x - Step 2: Convert to fraction form
311,497.62/429,866.87 = 168,257.66/x - Step 3: Cross multiply
311,497.62x = 429,866.87 × 168,257.66 - Step 4: Simplify right side
311,497.62x = 72,328,390,667.10 - Step 5: Solve for x
x = 72,328,390,667.10/311,497.62 - Step 6: Final answer
x = 232,195.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.