Finding the Fourth Proportional to 313,490.88, 432,605.12 and 170,247.68
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Solution
The fourth proportional to 313,490.88, 432,605.12 and 170,247.68 is: 234,935.12
Step by Step Solution
- Step 1: Write the proportion equation
313,490.88 : 432,605.12 = 170,247.68 : x - Step 2: Convert to fraction form
313,490.88/432,605.12 = 170,247.68/x - Step 3: Cross multiply
313,490.88x = 432,605.12 × 170,247.68 - Step 4: Simplify right side
313,490.88x = 73,650,018,036.12 - Step 5: Solve for x
x = 73,650,018,036.12/313,490.88 - Step 6: Final answer
x = 234,935.12
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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.