Finding the Fourth Proportional to 356,639.20, 492,320.36 and 227,746.53
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Solution
The fourth proportional to 356,639.20, 492,320.36 and 227,746.53 is: 314,391.28
Step by Step Solution
- Step 1: Write the proportion equation
356,639.20 : 492,320.36 = 227,746.53 : x - Step 2: Convert to fraction form
356,639.20/492,320.36 = 227,746.53/x - Step 3: Cross multiply
356,639.20x = 492,320.36 × 227,746.53 - Step 4: Simplify right side
356,639.20x = 112,124,253,638.35 - Step 5: Solve for x
x = 112,124,253,638.35/356,639.20 - Step 6: Final answer
x = 314,391.28
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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.