Finding the Fourth Proportional to 286,831.06, 430,442.61 and 99,842.56
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Solution
The fourth proportional to 286,831.06, 430,442.61 and 99,842.56 is: 149,832.07
Step by Step Solution
- Step 1: Write the proportion equation
286,831.06 : 430,442.61 = 99,842.56 : x - Step 2: Convert to fraction form
286,831.06/430,442.61 = 99,842.56/x - Step 3: Cross multiply
286,831.06x = 430,442.61 × 99,842.56 - Step 4: Simplify right side
286,831.06x = 42,976,492,115.48 - Step 5: Solve for x
x = 42,976,492,115.48/286,831.06 - Step 6: Final answer
x = 149,832.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.