Finding the Fourth Proportional to 287,519.01, 396,778.99 and 158,462.17
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Solution
The fourth proportional to 287,519.01, 396,778.99 and 158,462.17 is: 218,679.31
Step by Step Solution
- Step 1: Write the proportion equation
287,519.01 : 396,778.99 = 158,462.17 : x - Step 2: Convert to fraction form
287,519.01/396,778.99 = 158,462.17/x - Step 3: Cross multiply
287,519.01x = 396,778.99 × 158,462.17 - Step 4: Simplify right side
287,519.01x = 62,874,457,781.91 - Step 5: Solve for x
x = 62,874,457,781.91/287,519.01 - Step 6: Final answer
x = 218,679.31
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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.