Finding the Fourth Proportional to 289,479.18, 434,342.70 and 121,038.88
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Solution
The fourth proportional to 289,479.18, 434,342.70 and 121,038.88 is: 181,610.14
Step by Step Solution
- Step 1: Write the proportion equation
289,479.18 : 434,342.70 = 121,038.88 : x - Step 2: Convert to fraction form
289,479.18/434,342.70 = 121,038.88/x - Step 3: Cross multiply
289,479.18x = 434,342.70 × 121,038.88 - Step 4: Simplify right side
289,479.18x = 52,572,353,944.18 - Step 5: Solve for x
x = 52,572,353,944.18/289,479.18 - Step 6: Final answer
x = 181,610.14
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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.