Finding the Fourth Proportional to 317,584.98, 438,267.66 and 172,390.68
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Solution
The fourth proportional to 317,584.98, 438,267.66 and 172,390.68 is: 237,899.35
Step by Step Solution
- Step 1: Write the proportion equation
317,584.98 : 438,267.66 = 172,390.68 : x - Step 2: Convert to fraction form
317,584.98/438,267.66 = 172,390.68/x - Step 3: Cross multiply
317,584.98x = 438,267.66 × 172,390.68 - Step 4: Simplify right side
317,584.98x = 75,553,260,252.64 - Step 5: Solve for x
x = 75,553,260,252.64/317,584.98 - Step 6: Final answer
x = 237,899.35
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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.