Finding the Fourth Proportional to 274,541.46, 378,873.63 and 153,679.74
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Solution
The fourth proportional to 274,541.46, 378,873.63 and 153,679.74 is: 212,081.63
Step by Step Solution
- Step 1: Write the proportion equation
274,541.46 : 378,873.63 = 153,679.74 : x - Step 2: Convert to fraction form
274,541.46/378,873.63 = 153,679.74/x - Step 3: Cross multiply
274,541.46x = 378,873.63 × 153,679.74 - Step 4: Simplify right side
274,541.46x = 58,225,200,951.26 - Step 5: Solve for x
x = 58,225,200,951.26/274,541.46 - Step 6: Final answer
x = 212,081.63
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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.