Finding the Fourth Proportional to 313,631.45, 432,809.08 and 170,392.67
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Solution
The fourth proportional to 313,631.45, 432,809.08 and 170,392.67 is: 235,140.62
Step by Step Solution
- Step 1: Write the proportion equation
313,631.45 : 432,809.08 = 170,392.67 : x - Step 2: Convert to fraction form
313,631.45/432,809.08 = 170,392.67/x - Step 3: Cross multiply
313,631.45x = 432,809.08 × 170,392.67 - Step 4: Simplify right side
313,631.45x = 73,747,494,741.44 - Step 5: Solve for x
x = 73,747,494,741.44/313,631.45 - Step 6: Final answer
x = 235,140.62
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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.