Finding the Fourth Proportional to 390,167.84, 585,251.74 and 109,685.09
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Solution
The fourth proportional to 390,167.84, 585,251.74 and 109,685.09 is: 164,527.63
Step by Step Solution
- Step 1: Write the proportion equation
390,167.84 : 585,251.74 = 109,685.09 : x - Step 2: Convert to fraction form
390,167.84/585,251.74 = 109,685.09/x - Step 3: Cross multiply
390,167.84x = 585,251.74 × 109,685.09 - Step 4: Simplify right side
390,167.84x = 64,193,389,774.56 - Step 5: Solve for x
x = 64,193,389,774.56/390,167.84 - Step 6: Final answer
x = 164,527.63
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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.