Finding the Fourth Proportional to 313,695.91, 432,903.08 and 170,455.94
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Solution
The fourth proportional to 313,695.91, 432,903.08 and 170,455.94 is: 235,230.68
Step by Step Solution
- Step 1: Write the proportion equation
313,695.91 : 432,903.08 = 170,455.94 : x - Step 2: Convert to fraction form
313,695.91/432,903.08 = 170,455.94/x - Step 3: Cross multiply
313,695.91x = 432,903.08 × 170,455.94 - Step 4: Simplify right side
313,695.91x = 73,790,902,938.69 - Step 5: Solve for x
x = 73,790,902,938.69/313,695.91 - Step 6: Final answer
x = 235,230.68
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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.