Finding the Fourth Proportional to 316,109.29, 436,270.77 and 207,305.18
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Solution
The fourth proportional to 316,109.29, 436,270.77 and 207,305.18 is: 286,107.35
Step by Step Solution
- Step 1: Write the proportion equation
316,109.29 : 436,270.77 = 207,305.18 : x - Step 2: Convert to fraction form
316,109.29/436,270.77 = 207,305.18/x - Step 3: Cross multiply
316,109.29x = 436,270.77 × 207,305.18 - Step 4: Simplify right side
316,109.29x = 90,441,190,503.59 - Step 5: Solve for x
x = 90,441,190,503.59/316,109.29 - Step 6: Final answer
x = 286,107.35
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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.