Finding the Fourth Proportional to 458,786.09, 688,186.06 and 159,276.20
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Solution
The fourth proportional to 458,786.09, 688,186.06 and 159,276.20 is: 238,916.70
Step by Step Solution
- Step 1: Write the proportion equation
458,786.09 : 688,186.06 = 159,276.20 : x - Step 2: Convert to fraction form
458,786.09/688,186.06 = 159,276.20/x - Step 3: Cross multiply
458,786.09x = 688,186.06 × 159,276.20 - Step 4: Simplify right side
458,786.09x = 109,611,660,529.77 - Step 5: Solve for x
x = 109,611,660,529.77/458,786.09 - Step 6: Final answer
x = 238,916.70
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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.