Finding the Fourth Proportional to 212,730.30, 293,565.21 and 117,234.95
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Solution
The fourth proportional to 212,730.30, 293,565.21 and 117,234.95 is: 161,782.79
Step by Step Solution
- Step 1: Write the proportion equation
212,730.30 : 293,565.21 = 117,234.95 : x - Step 2: Convert to fraction form
212,730.30/293,565.21 = 117,234.95/x - Step 3: Cross multiply
212,730.30x = 293,565.21 × 117,234.95 - Step 4: Simplify right side
212,730.30x = 34,416,101,468.08 - Step 5: Solve for x
x = 34,416,101,468.08/212,730.30 - Step 6: Final answer
x = 161,782.79
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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.