Finding the Fourth Proportional to 302,728.97, 417,734.55 and 186,423.95
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Solution
The fourth proportional to 302,728.97, 417,734.55 and 186,423.95 is: 257,245.70
Step by Step Solution
- Step 1: Write the proportion equation
302,728.97 : 417,734.55 = 186,423.95 : x - Step 2: Convert to fraction form
302,728.97/417,734.55 = 186,423.95/x - Step 3: Cross multiply
302,728.97x = 417,734.55 × 186,423.95 - Step 4: Simplify right side
302,728.97x = 77,875,724,862.47 - Step 5: Solve for x
x = 77,875,724,862.47/302,728.97 - Step 6: Final answer
x = 257,245.70
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1.5x scale
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.