Finding the Fourth Proportional to 312,177.31, 430,805.76 and 168,937.31
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Solution
The fourth proportional to 312,177.31, 430,805.76 and 168,937.31 is: 233,134.07
Step by Step Solution
- Step 1: Write the proportion equation
312,177.31 : 430,805.76 = 168,937.31 : x - Step 2: Convert to fraction form
312,177.31/430,805.76 = 168,937.31/x - Step 3: Cross multiply
312,177.31x = 430,805.76 × 168,937.31 - Step 4: Simplify right side
312,177.31x = 72,779,166,670.41 - Step 5: Solve for x
x = 72,779,166,670.41/312,177.31 - Step 6: Final answer
x = 233,134.07
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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.