Finding the Fourth Proportional to 259,906.64, 389,859.68 and 97,830.96
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Solution
The fourth proportional to 259,906.64, 389,859.68 and 97,830.96 is: 146,746.34
Step by Step Solution
- Step 1: Write the proportion equation
259,906.64 : 389,859.68 = 97,830.96 : x - Step 2: Convert to fraction form
259,906.64/389,859.68 = 97,830.96/x - Step 3: Cross multiply
259,906.64x = 389,859.68 × 97,830.96 - Step 4: Simplify right side
259,906.64x = 38,140,346,270.54 - Step 5: Solve for x
x = 38,140,346,270.54/259,906.64 - Step 6: Final answer
x = 146,746.34
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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.