Finding the Fourth Proportional to 372,442.68, 513,980.10 and 202,686.12
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Solution
The fourth proportional to 372,442.68, 513,980.10 and 202,686.12 is: 279,711.85
Step by Step Solution
- Step 1: Write the proportion equation
372,442.68 : 513,980.10 = 202,686.12 : x - Step 2: Convert to fraction form
372,442.68/513,980.10 = 202,686.12/x - Step 3: Cross multiply
372,442.68x = 513,980.10 × 202,686.12 - Step 4: Simplify right side
372,442.68x = 104,176,632,226.21 - Step 5: Solve for x
x = 104,176,632,226.21/372,442.68 - Step 6: Final answer
x = 279,711.85
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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.