Finding the Fourth Proportional to 316,295.73, 474,390.63 and 138,755.07
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Solution
The fourth proportional to 316,295.73, 474,390.63 and 138,755.07 is: 208,109.37
Step by Step Solution
- Step 1: Write the proportion equation
316,295.73 : 474,390.63 = 138,755.07 : x - Step 2: Convert to fraction form
316,295.73/474,390.63 = 138,755.07/x - Step 3: Cross multiply
316,295.73x = 474,390.63 × 138,755.07 - Step 4: Simplify right side
316,295.73x = 65,824,105,072.99 - Step 5: Solve for x
x = 65,824,105,072.99/316,295.73 - Step 6: Final answer
x = 208,109.37
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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.