Finding the Fourth Proportional to 239,397.08, 358,036.86 and 212,928.91
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Solution
The fourth proportional to 239,397.08, 358,036.86 and 212,928.91 is: 318,451.66
Step by Step Solution
- Step 1: Write the proportion equation
239,397.08 : 358,036.86 = 212,928.91 : x - Step 2: Convert to fraction form
239,397.08/358,036.86 = 212,928.91/x - Step 3: Cross multiply
239,397.08x = 358,036.86 × 212,928.91 - Step 4: Simplify right side
239,397.08x = 76,236,398,339.62 - Step 5: Solve for x
x = 76,236,398,339.62/239,397.08 - Step 6: Final answer
x = 318,451.66
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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.