Finding the Fourth Proportional to 372,184.12, 513,612.66 and 202,421.08
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Solution
The fourth proportional to 372,184.12, 513,612.66 and 202,421.08 is: 279,340.32
Step by Step Solution
- Step 1: Write the proportion equation
372,184.12 : 513,612.66 = 202,421.08 : x - Step 2: Convert to fraction form
372,184.12/513,612.66 = 202,421.08/x - Step 3: Cross multiply
372,184.12x = 513,612.66 × 202,421.08 - Step 4: Simplify right side
372,184.12x = 103,966,029,338.87 - Step 5: Solve for x
x = 103,966,029,338.87/372,184.12 - Step 6: Final answer
x = 279,340.32
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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.