Finding the Fourth Proportional to 294,867.12, 406,916.64 and 160,731.12
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Solution
The fourth proportional to 294,867.12, 406,916.64 and 160,731.12 is: 221,808.95
Step by Step Solution
- Step 1: Write the proportion equation
294,867.12 : 406,916.64 = 160,731.12 : x - Step 2: Convert to fraction form
294,867.12/406,916.64 = 160,731.12/x - Step 3: Cross multiply
294,867.12x = 406,916.64 × 160,731.12 - Step 4: Simplify right side
294,867.12x = 65,404,167,293.84 - Step 5: Solve for x
x = 65,404,167,293.84/294,867.12 - Step 6: Final answer
x = 221,808.95
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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.