Finding the Fourth Proportional to 426,487.92, 639,031.68 and 145,852.08
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Solution
The fourth proportional to 426,487.92, 639,031.68 and 145,852.08 is: 218,538.66
Step by Step Solution
- Step 1: Write the proportion equation
426,487.92 : 639,031.68 = 145,852.08 : x - Step 2: Convert to fraction form
426,487.92/639,031.68 = 145,852.08/x - Step 3: Cross multiply
426,487.92x = 639,031.68 × 145,852.08 - Step 4: Simplify right side
426,487.92x = 93,204,099,713.89 - Step 5: Solve for x
x = 93,204,099,713.89/426,487.92 - Step 6: Final answer
x = 218,538.66
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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.