Finding the Fourth Proportional to 310,726.76, 428,753.50 and 174,734.42
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Solution
The fourth proportional to 310,726.76, 428,753.50 and 174,734.42 is: 241,105.70
Step by Step Solution
- Step 1: Write the proportion equation
310,726.76 : 428,753.50 = 174,734.42 : x - Step 2: Convert to fraction form
310,726.76/428,753.50 = 174,734.42/x - Step 3: Cross multiply
310,726.76x = 428,753.50 × 174,734.42 - Step 4: Simplify right side
310,726.76x = 74,917,994,780.52 - Step 5: Solve for x
x = 74,917,994,780.52/310,726.76 - Step 6: Final answer
x = 241,105.70
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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.