Finding the Fourth Proportional to 310,684.79, 428,740.92 and 174,718.70
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Solution
The fourth proportional to 310,684.79, 428,740.92 and 174,718.70 is: 241,109.50
Step by Step Solution
- Step 1: Write the proportion equation
310,684.79 : 428,740.92 = 174,718.70 : x - Step 2: Convert to fraction form
310,684.79/428,740.92 = 174,718.70/x - Step 3: Cross multiply
310,684.79x = 428,740.92 × 174,718.70 - Step 4: Simplify right side
310,684.79x = 74,909,054,035.50 - Step 5: Solve for x
x = 74,909,054,035.50/310,684.79 - Step 6: Final answer
x = 241,109.50
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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.