Finding the Fourth Proportional to 231,432.74, 319,248.56 and 134,625.70
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Solution
The fourth proportional to 231,432.74, 319,248.56 and 134,625.70 is: 185,708.65
Step by Step Solution
- Step 1: Write the proportion equation
231,432.74 : 319,248.56 = 134,625.70 : x - Step 2: Convert to fraction form
231,432.74/319,248.56 = 134,625.70/x - Step 3: Cross multiply
231,432.74x = 319,248.56 × 134,625.70 - Step 4: Simplify right side
231,432.74x = 42,979,060,863.99 - Step 5: Solve for x
x = 42,979,060,863.99/231,432.74 - Step 6: Final answer
x = 185,708.65
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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.