Finding the Fourth Proportional to 458,153.64, 686,529.05 and 191,769.12
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Solution
The fourth proportional to 458,153.64, 686,529.05 and 191,769.12 is: 287,360.09
Step by Step Solution
- Step 1: Write the proportion equation
458,153.64 : 686,529.05 = 191,769.12 : x - Step 2: Convert to fraction form
458,153.64/686,529.05 = 191,769.12/x - Step 3: Cross multiply
458,153.64x = 686,529.05 × 191,769.12 - Step 4: Simplify right side
458,153.64x = 131,655,070,814.09 - Step 5: Solve for x
x = 131,655,070,814.09/458,153.64 - Step 6: Final answer
x = 287,360.09
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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.