Finding the Fourth Proportional to 285,246.36, 393,624.32 and 156,159.84
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Solution
The fourth proportional to 285,246.36, 393,624.32 and 156,159.84 is: 215,492.01
Step by Step Solution
- Step 1: Write the proportion equation
285,246.36 : 393,624.32 = 156,159.84 : x - Step 2: Convert to fraction form
285,246.36/393,624.32 = 156,159.84/x - Step 3: Cross multiply
285,246.36x = 393,624.32 × 156,159.84 - Step 4: Simplify right side
285,246.36x = 61,468,310,831.31 - Step 5: Solve for x
x = 61,468,310,831.31/285,246.36 - Step 6: Final answer
x = 215,492.01
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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.