Finding the Fourth Proportional to 289,555.28, 434,184.80 and 121,029.62
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Solution
The fourth proportional to 289,555.28, 434,184.80 and 121,029.62 is: 181,482.52
Step by Step Solution
- Step 1: Write the proportion equation
289,555.28 : 434,184.80 = 121,029.62 : x - Step 2: Convert to fraction form
289,555.28/434,184.80 = 121,029.62/x - Step 3: Cross multiply
289,555.28x = 434,184.80 × 121,029.62 - Step 4: Simplify right side
289,555.28x = 52,549,221,353.78 - Step 5: Solve for x
x = 52,549,221,353.78/289,555.28 - Step 6: Final answer
x = 181,482.52
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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.