Finding the Fourth Proportional to 313,752.05, 432,961.26 and 177,787.63
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Solution
The fourth proportional to 313,752.05, 432,961.26 and 177,787.63 is: 245,337.54
Step by Step Solution
- Step 1: Write the proportion equation
313,752.05 : 432,961.26 = 177,787.63 : x - Step 2: Convert to fraction form
313,752.05/432,961.26 = 177,787.63/x - Step 3: Cross multiply
313,752.05x = 432,961.26 × 177,787.63 - Step 4: Simplify right side
313,752.05x = 76,975,156,297.21 - Step 5: Solve for x
x = 76,975,156,297.21/313,752.05 - Step 6: Final answer
x = 245,337.54
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1.5x scale
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.