Finding the Fourth Proportional to 316,943.93, 437,381.78 and 171,753.74
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Solution
The fourth proportional to 316,943.93, 437,381.78 and 171,753.74 is: 237,019.70
Step by Step Solution
- Step 1: Write the proportion equation
316,943.93 : 437,381.78 = 171,753.74 : x - Step 2: Convert to fraction form
316,943.93/437,381.78 = 171,753.74/x - Step 3: Cross multiply
316,943.93x = 437,381.78 × 171,753.74 - Step 4: Simplify right side
316,943.93x = 75,121,956,757.54 - Step 5: Solve for x
x = 75,121,956,757.54/316,943.93 - Step 6: Final answer
x = 237,019.70
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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.