Finding the Fourth Proportional to 257,927.76, 386,881.92 and 106,119.18
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Solution
The fourth proportional to 257,927.76, 386,881.92 and 106,119.18 is: 159,174.77
Step by Step Solution
- Step 1: Write the proportion equation
257,927.76 : 386,881.92 = 106,119.18 : x - Step 2: Convert to fraction form
257,927.76/386,881.92 = 106,119.18/x - Step 3: Cross multiply
257,927.76x = 386,881.92 × 106,119.18 - Step 4: Simplify right side
257,927.76x = 41,055,592,107.23 - Step 5: Solve for x
x = 41,055,592,107.23/257,927.76 - Step 6: Final answer
x = 159,174.77
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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.