Finding the Fourth Proportional to 312,294.69, 430,963.74 and 169,051.05
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Solution
The fourth proportional to 312,294.69, 430,963.74 and 169,051.05 is: 233,288.86
Step by Step Solution
- Step 1: Write the proportion equation
312,294.69 : 430,963.74 = 169,051.05 : x - Step 2: Convert to fraction form
312,294.69/430,963.74 = 169,051.05/x - Step 3: Cross multiply
312,294.69x = 430,963.74 × 169,051.05 - Step 4: Simplify right side
312,294.69x = 72,854,872,758.93 - Step 5: Solve for x
x = 72,854,872,758.93/312,294.69 - Step 6: Final answer
x = 233,288.86
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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.