Finding the Fourth Proportional to 381,657.20, 572,485.80 and 97,347.20
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Solution
The fourth proportional to 381,657.20, 572,485.80 and 97,347.20 is: 146,020.80
Step by Step Solution
- Step 1: Write the proportion equation
381,657.20 : 572,485.80 = 97,347.20 : x - Step 2: Convert to fraction form
381,657.20/572,485.80 = 97,347.20/x - Step 3: Cross multiply
381,657.20x = 572,485.80 × 97,347.20 - Step 4: Simplify right side
381,657.20x = 55,729,889,669.76 - Step 5: Solve for x
x = 55,729,889,669.76/381,657.20 - Step 6: Final answer
x = 146,020.80
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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.