Finding the Fourth Proportional to 390,853.96, 585,943.47 and 151,135.67
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Solution
The fourth proportional to 390,853.96, 585,943.47 and 151,135.67 is: 226,573.02
Step by Step Solution
- Step 1: Write the proportion equation
390,853.96 : 585,943.47 = 151,135.67 : x - Step 2: Convert to fraction form
390,853.96/585,943.47 = 151,135.67/x - Step 3: Cross multiply
390,853.96x = 585,943.47 × 151,135.67 - Step 4: Simplify right side
390,853.96x = 88,556,960,385.43 - Step 5: Solve for x
x = 88,556,960,385.43/390,853.96 - Step 6: Final answer
x = 226,573.02
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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.