Finding the Fourth Proportional to 390,629.43, 585,475.34 and 201,178.94
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Solution
The fourth proportional to 390,629.43, 585,475.34 and 201,178.94 is: 301,526.96
Step by Step Solution
- Step 1: Write the proportion equation
390,629.43 : 585,475.34 = 201,178.94 : x - Step 2: Convert to fraction form
390,629.43/585,475.34 = 201,178.94/x - Step 3: Cross multiply
390,629.43x = 585,475.34 × 201,178.94 - Step 4: Simplify right side
390,629.43x = 117,785,304,364.07 - Step 5: Solve for x
x = 117,785,304,364.07/390,629.43 - Step 6: Final answer
x = 301,526.96
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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.