Finding the Fourth Proportional to 478,609.86, 717,660.80 and 141,604.08
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Solution
The fourth proportional to 478,609.86, 717,660.80 and 141,604.08 is: 212,330.97
Step by Step Solution
- Step 1: Write the proportion equation
478,609.86 : 717,660.80 = 141,604.08 : x - Step 2: Convert to fraction form
478,609.86/717,660.80 = 141,604.08/x - Step 3: Cross multiply
478,609.86x = 717,660.80 × 141,604.08 - Step 4: Simplify right side
478,609.86x = 101,623,697,336.06 - Step 5: Solve for x
x = 101,623,697,336.06/478,609.86 - Step 6: Final answer
x = 212,330.97
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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.