Finding the Fourth Proportional to 310,128.13, 427,864.84 and 175,914.37
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Solution
The fourth proportional to 310,128.13, 427,864.84 and 175,914.37 is: 242,698.31
Step by Step Solution
- Step 1: Write the proportion equation
310,128.13 : 427,864.84 = 175,914.37 : x - Step 2: Convert to fraction form
310,128.13/427,864.84 = 175,914.37/x - Step 3: Cross multiply
310,128.13x = 427,864.84 × 175,914.37 - Step 4: Simplify right side
310,128.13x = 75,267,573,773.75 - Step 5: Solve for x
x = 75,267,573,773.75/310,128.13 - Step 6: Final answer
x = 242,698.31
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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.