Finding the Fourth Proportional to 257,388.32, 386,131.04 and 97,512.08
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Solution
The fourth proportional to 257,388.32, 386,131.04 and 97,512.08 is: 146,286.52
Step by Step Solution
- Step 1: Write the proportion equation
257,388.32 : 386,131.04 = 97,512.08 : x - Step 2: Convert to fraction form
257,388.32/386,131.04 = 97,512.08/x - Step 3: Cross multiply
257,388.32x = 386,131.04 × 97,512.08 - Step 4: Simplify right side
257,388.32x = 37,652,440,862.96 - Step 5: Solve for x
x = 37,652,440,862.96/257,388.32 - Step 6: Final answer
x = 146,286.52
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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.