Finding the Fourth Proportional to 389,358.18, 537,313.28 and 217,274.32
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Solution
The fourth proportional to 389,358.18, 537,313.28 and 217,274.32 is: 299,838.00
Step by Step Solution
- Step 1: Write the proportion equation
389,358.18 : 537,313.28 = 217,274.32 : x - Step 2: Convert to fraction form
389,358.18/537,313.28 = 217,274.32/x - Step 3: Cross multiply
389,358.18x = 537,313.28 × 217,274.32 - Step 4: Simplify right side
389,358.18x = 116,744,377,538.97 - Step 5: Solve for x
x = 116,744,377,538.97/389,358.18 - Step 6: Final answer
x = 299,838.00
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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.