Finding the Fourth Proportional to 313,454.13, 432,677.07 and 186,128.82
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Solution
The fourth proportional to 313,454.13, 432,677.07 and 186,128.82 is: 256,923.31
Step by Step Solution
- Step 1: Write the proportion equation
313,454.13 : 432,677.07 = 186,128.82 : x - Step 2: Convert to fraction form
313,454.13/432,677.07 = 186,128.82/x - Step 3: Cross multiply
313,454.13x = 432,677.07 × 186,128.82 - Step 4: Simplify right side
313,454.13x = 80,533,672,480.16 - Step 5: Solve for x
x = 80,533,672,480.16/313,454.13 - Step 6: Final answer
x = 256,923.31
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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.