Finding the Fourth Proportional to 230,531.04, 318,134.23 and 128,562.96
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Solution
The fourth proportional to 230,531.04, 318,134.23 and 128,562.96 is: 177,417.66
Step by Step Solution
- Step 1: Write the proportion equation
230,531.04 : 318,134.23 = 128,562.96 : x - Step 2: Convert to fraction form
230,531.04/318,134.23 = 128,562.96/x - Step 3: Cross multiply
230,531.04x = 318,134.23 × 128,562.96 - Step 4: Simplify right side
230,531.04x = 40,900,278,286.12 - Step 5: Solve for x
x = 40,900,278,286.12/230,531.04 - Step 6: Final answer
x = 177,417.66
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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.