Finding the Fourth Proportional to 282,743.13, 390,193.97 and 161,923.53
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Solution
The fourth proportional to 282,743.13, 390,193.97 and 161,923.53 is: 223,459.31
Step by Step Solution
- Step 1: Write the proportion equation
282,743.13 : 390,193.97 = 161,923.53 : x - Step 2: Convert to fraction form
282,743.13/390,193.97 = 161,923.53/x - Step 3: Cross multiply
282,743.13x = 390,193.97 × 161,923.53 - Step 4: Simplify right side
282,743.13x = 63,181,584,197.50 - Step 5: Solve for x
x = 63,181,584,197.50/282,743.13 - Step 6: Final answer
x = 223,459.31
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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.