Finding the Fourth Proportional to 194,258.30, 291,214.65 and 115,288.70
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Solution
The fourth proportional to 194,258.30, 291,214.65 and 115,288.70 is: 172,830.50
Step by Step Solution
- Step 1: Write the proportion equation
194,258.30 : 291,214.65 = 115,288.70 : x - Step 2: Convert to fraction form
194,258.30/291,214.65 = 115,288.70/x - Step 3: Cross multiply
194,258.30x = 291,214.65 × 115,288.70 - Step 4: Simplify right side
194,258.30x = 33,573,758,419.46 - Step 5: Solve for x
x = 33,573,758,419.46/194,258.30 - Step 6: Final answer
x = 172,830.50
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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.