Finding the Fourth Proportional to 289,641.08, 434,355.06 and 100,053.20
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Solution
The fourth proportional to 289,641.08, 434,355.06 and 100,053.20 is: 150,042.99
Step by Step Solution
- Step 1: Write the proportion equation
289,641.08 : 434,355.06 = 100,053.20 : x - Step 2: Convert to fraction form
289,641.08/434,355.06 = 100,053.20/x - Step 3: Cross multiply
289,641.08x = 434,355.06 × 100,053.20 - Step 4: Simplify right side
289,641.08x = 43,458,613,689.19 - Step 5: Solve for x
x = 43,458,613,689.19/289,641.08 - Step 6: Final answer
x = 150,042.99
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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.