Finding the Fourth Proportional to 308,372.64, 462,733.94 and 121,515.36
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Solution
The fourth proportional to 308,372.64, 462,733.94 and 121,515.36 is: 182,341.99
Step by Step Solution
- Step 1: Write the proportion equation
308,372.64 : 462,733.94 = 121,515.36 : x - Step 2: Convert to fraction form
308,372.64/462,733.94 = 121,515.36/x - Step 3: Cross multiply
308,372.64x = 462,733.94 × 121,515.36 - Step 4: Simplify right side
308,372.64x = 56,229,281,303.32 - Step 5: Solve for x
x = 56,229,281,303.32/308,372.64 - Step 6: Final answer
x = 182,341.99
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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.