Finding the Fourth Proportional to 304,432.70, 427,138.90 and 304,432.70
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Solution
The fourth proportional to 304,432.70, 427,138.90 and 304,432.70 is: 427,138.90
Step by Step Solution
- Step 1: Write the proportion equation
304,432.70 : 427,138.90 = 304,432.70 : x - Step 2: Convert to fraction form
304,432.70/427,138.90 = 304,432.70/x - Step 3: Cross multiply
304,432.70x = 427,138.90 × 304,432.70 - Step 4: Simplify right side
304,432.70x = 130,035,048,602.03 - Step 5: Solve for x
x = 130,035,048,602.03/304,432.70 - Step 6: Final answer
x = 427,138.90
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.