Finding the Fourth Proportional to 221,803.20, 306,088.08 and 126,309.94
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Solution
The fourth proportional to 221,803.20, 306,088.08 and 126,309.94 is: 174,307.53
Step by Step Solution
- Step 1: Write the proportion equation
221,803.20 : 306,088.08 = 126,309.94 : x - Step 2: Convert to fraction form
221,803.20/306,088.08 = 126,309.94/x - Step 3: Cross multiply
221,803.20x = 306,088.08 × 126,309.94 - Step 4: Simplify right side
221,803.20x = 38,661,967,019.52 - Step 5: Solve for x
x = 38,661,967,019.52/221,803.20 - Step 6: Final answer
x = 174,307.53
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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.