Finding the Fourth Proportional to 304,542.48, 420,427.80 and 189,856.08
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Solution
The fourth proportional to 304,542.48, 420,427.80 and 189,856.08 is: 262,100.62
Step by Step Solution
- Step 1: Write the proportion equation
304,542.48 : 420,427.80 = 189,856.08 : x - Step 2: Convert to fraction form
304,542.48/420,427.80 = 189,856.08/x - Step 3: Cross multiply
304,542.48x = 420,427.80 × 189,856.08 - Step 4: Simplify right side
304,542.48x = 79,820,774,031.02 - Step 5: Solve for x
x = 79,820,774,031.02/304,542.48 - Step 6: Final answer
x = 262,100.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.