Finding the Fourth Proportional to 357,537.12, 493,479.82 and 247,310.84
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Solution
The fourth proportional to 357,537.12, 493,479.82 and 247,310.84 is: 341,343.32
Step by Step Solution
- Step 1: Write the proportion equation
357,537.12 : 493,479.82 = 247,310.84 : x - Step 2: Convert to fraction form
357,537.12/493,479.82 = 247,310.84/x - Step 3: Cross multiply
357,537.12x = 493,479.82 × 247,310.84 - Step 4: Simplify right side
357,537.12x = 122,042,908,807.25 - Step 5: Solve for x
x = 122,042,908,807.25/357,537.12 - Step 6: Final answer
x = 341,343.32
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1.5x scale
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.