Finding the Fourth Proportional to 312,491.52, 431,237.88 and 169,252.08
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Solution
The fourth proportional to 312,491.52, 431,237.88 and 169,252.08 is: 233,567.64
Step by Step Solution
- Step 1: Write the proportion equation
312,491.52 : 431,237.88 = 169,252.08 : x - Step 2: Convert to fraction form
312,491.52/431,237.88 = 169,252.08/x - Step 3: Cross multiply
312,491.52x = 431,237.88 × 169,252.08 - Step 4: Simplify right side
312,491.52x = 72,987,908,164.79 - Step 5: Solve for x
x = 72,987,908,164.79/312,491.52 - Step 6: Final answer
x = 233,567.64
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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.