Finding the Fourth Proportional to 477,743.80, 716,615.70 and 193,433.80
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Solution
The fourth proportional to 477,743.80, 716,615.70 and 193,433.80 is: 290,150.70
Step by Step Solution
- Step 1: Write the proportion equation
477,743.80 : 716,615.70 = 193,433.80 : x - Step 2: Convert to fraction form
477,743.80/716,615.70 = 193,433.80/x - Step 3: Cross multiply
477,743.80x = 716,615.70 × 193,433.80 - Step 4: Simplify right side
477,743.80x = 138,617,697,990.66 - Step 5: Solve for x
x = 138,617,697,990.66/477,743.80 - Step 6: Final answer
x = 290,150.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.