Finding the Fourth Proportional to 379,089.18, 523,143.97 and 207,007.48
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Solution
The fourth proportional to 379,089.18, 523,143.97 and 207,007.48 is: 285,670.81
Step by Step Solution
- Step 1: Write the proportion equation
379,089.18 : 523,143.97 = 207,007.48 : x - Step 2: Convert to fraction form
379,089.18/523,143.97 = 207,007.48/x - Step 3: Cross multiply
379,089.18x = 523,143.97 × 207,007.48 - Step 4: Simplify right side
379,089.18x = 108,294,712,693.38 - Step 5: Solve for x
x = 108,294,712,693.38/379,089.18 - Step 6: Final answer
x = 285,670.81
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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.