Finding the Fourth Proportional to 385,529.20, 532,368.12 and 242,537.20
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Solution
The fourth proportional to 385,529.20, 532,368.12 and 242,537.20 is: 334,913.86
Step by Step Solution
- Step 1: Write the proportion equation
385,529.20 : 532,368.12 = 242,537.20 : x - Step 2: Convert to fraction form
385,529.20/532,368.12 = 242,537.20/x - Step 3: Cross multiply
385,529.20x = 532,368.12 × 242,537.20 - Step 4: Simplify right side
385,529.20x = 129,119,073,194.06 - Step 5: Solve for x
x = 129,119,073,194.06/385,529.20 - Step 6: Final answer
x = 334,913.86
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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.