Finding the Fourth Proportional to 316,510.98, 436,785.84 and 173,279.94
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Solution
The fourth proportional to 316,510.98, 436,785.84 and 173,279.94 is: 239,126.69
Step by Step Solution
- Step 1: Write the proportion equation
316,510.98 : 436,785.84 = 173,279.94 : x - Step 2: Convert to fraction form
316,510.98/436,785.84 = 173,279.94/x - Step 3: Cross multiply
316,510.98x = 436,785.84 × 173,279.94 - Step 4: Simplify right side
316,510.98x = 75,686,224,148.05 - Step 5: Solve for x
x = 75,686,224,148.05/316,510.98 - Step 6: Final answer
x = 239,126.69
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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.