Finding the Fourth Proportional to 207,277.70, 310,916.56 and 74,221.70
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Solution
The fourth proportional to 207,277.70, 310,916.56 and 74,221.70 is: 111,332.55
Step by Step Solution
- Step 1: Write the proportion equation
207,277.70 : 310,916.56 = 74,221.70 : x - Step 2: Convert to fraction form
207,277.70/310,916.56 = 74,221.70/x - Step 3: Cross multiply
207,277.70x = 310,916.56 × 74,221.70 - Step 4: Simplify right side
207,277.70x = 23,076,755,641.35 - Step 5: Solve for x
x = 23,076,755,641.35/207,277.70 - Step 6: Final answer
x = 111,332.55
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1.5x scale
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.