Finding the Fourth Proportional to 194,328.30, 291,319.65 and 115,358.70
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Solution
The fourth proportional to 194,328.30, 291,319.65 and 115,358.70 is: 172,935.47
Step by Step Solution
- Step 1: Write the proportion equation
194,328.30 : 291,319.65 = 115,358.70 : x - Step 2: Convert to fraction form
194,328.30/291,319.65 = 115,358.70/x - Step 3: Cross multiply
194,328.30x = 291,319.65 × 115,358.70 - Step 4: Simplify right side
194,328.30x = 33,606,256,108.46 - Step 5: Solve for x
x = 33,606,256,108.46/194,328.30 - Step 6: Final answer
x = 172,935.47
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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.