Finding the Fourth Proportional to 284,206.05, 392,203.44 and 156,880.71
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Solution
The fourth proportional to 284,206.05, 392,203.44 and 156,880.71 is: 216,494.88
Step by Step Solution
- Step 1: Write the proportion equation
284,206.05 : 392,203.44 = 156,880.71 : x - Step 2: Convert to fraction form
284,206.05/392,203.44 = 156,880.71/x - Step 3: Cross multiply
284,206.05x = 392,203.44 × 156,880.71 - Step 4: Simplify right side
284,206.05x = 61,529,154,131.64 - Step 5: Solve for x
x = 61,529,154,131.64/284,206.05 - Step 6: Final answer
x = 216,494.88
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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.