Finding the Fourth Proportional to 312,340.98, 430,854.66 and 197,584.32
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Solution
The fourth proportional to 312,340.98, 430,854.66 and 197,584.32 is: 272,555.09
Step by Step Solution
- Step 1: Write the proportion equation
312,340.98 : 430,854.66 = 197,584.32 : x - Step 2: Convert to fraction form
312,340.98/430,854.66 = 197,584.32/x - Step 3: Cross multiply
312,340.98x = 430,854.66 × 197,584.32 - Step 4: Simplify right side
312,340.98x = 85,130,125,014.93 - Step 5: Solve for x
x = 85,130,125,014.93/312,340.98 - Step 6: Final answer
x = 272,555.09
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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.