Finding the Fourth Proportional to 312,302.70, 430,968.06 and 176,334.48
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Solution
The fourth proportional to 312,302.70, 430,968.06 and 176,334.48 is: 243,336.12
Step by Step Solution
- Step 1: Write the proportion equation
312,302.70 : 430,968.06 = 176,334.48 : x - Step 2: Convert to fraction form
312,302.70/430,968.06 = 176,334.48/x - Step 3: Cross multiply
312,302.70x = 430,968.06 × 176,334.48 - Step 4: Simplify right side
312,302.70x = 75,994,528,756.71 - Step 5: Solve for x
x = 75,994,528,756.71/312,302.70 - Step 6: Final answer
x = 243,336.12
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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.