Finding the Fourth Proportional to 291,819.53, 402,863.16 and 207,138.89
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Solution
The fourth proportional to 291,819.53, 402,863.16 and 207,138.89 is: 285,959.70
Step by Step Solution
- Step 1: Write the proportion equation
291,819.53 : 402,863.16 = 207,138.89 : x - Step 2: Convert to fraction form
291,819.53/402,863.16 = 207,138.89/x - Step 3: Cross multiply
291,819.53x = 402,863.16 × 207,138.89 - Step 4: Simplify right side
291,819.53x = 83,448,624,734.28 - Step 5: Solve for x
x = 83,448,624,734.28/291,819.53 - Step 6: Final answer
x = 285,959.70
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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.