Finding the Fourth Proportional to 275,913.12, 413,869.68 and 98,412.96
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Solution
The fourth proportional to 275,913.12, 413,869.68 and 98,412.96 is: 147,619.44
Step by Step Solution
- Step 1: Write the proportion equation
275,913.12 : 413,869.68 = 98,412.96 : x - Step 2: Convert to fraction form
275,913.12/413,869.68 = 98,412.96/x - Step 3: Cross multiply
275,913.12x = 413,869.68 × 98,412.96 - Step 4: Simplify right side
275,913.12x = 40,730,140,263.05 - Step 5: Solve for x
x = 40,730,140,263.05/275,913.12 - Step 6: Final answer
x = 147,619.44
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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.