Finding the Fourth Proportional to 356,177.99, 534,123.43 and 128,408.76
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Solution
The fourth proportional to 356,177.99, 534,123.43 and 128,408.76 is: 192,561.39
Step by Step Solution
- Step 1: Write the proportion equation
356,177.99 : 534,123.43 = 128,408.76 : x - Step 2: Convert to fraction form
356,177.99/534,123.43 = 128,408.76/x - Step 3: Cross multiply
356,177.99x = 534,123.43 × 128,408.76 - Step 4: Simplify right side
356,177.99x = 68,586,127,333.25 - Step 5: Solve for x
x = 68,586,127,333.25/356,177.99 - Step 6: Final answer
x = 192,561.39
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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.