Finding the Fourth Proportional to 311,565.18, 429,960.15 and 168,325.14
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Solution
The fourth proportional to 311,565.18, 429,960.15 and 168,325.14 is: 232,288.80
Step by Step Solution
- Step 1: Write the proportion equation
311,565.18 : 429,960.15 = 168,325.14 : x - Step 2: Convert to fraction form
311,565.18/429,960.15 = 168,325.14/x - Step 3: Cross multiply
311,565.18x = 429,960.15 × 168,325.14 - Step 4: Simplify right side
311,565.18x = 72,373,102,443.17 - Step 5: Solve for x
x = 72,373,102,443.17/311,565.18 - Step 6: Final answer
x = 232,288.80
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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.