Finding the Fourth Proportional to 421,668.64, 632,752.44 and 155,614.42
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Solution
The fourth proportional to 421,668.64, 632,752.44 and 155,614.42 is: 233,513.70
Step by Step Solution
- Step 1: Write the proportion equation
421,668.64 : 632,752.44 = 155,614.42 : x - Step 2: Convert to fraction form
421,668.64/632,752.44 = 155,614.42/x - Step 3: Cross multiply
421,668.64x = 632,752.44 × 155,614.42 - Step 4: Simplify right side
421,668.64x = 98,465,403,954.18 - Step 5: Solve for x
x = 98,465,403,954.18/421,668.64 - Step 6: Final answer
x = 233,513.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.