Finding the Fourth Proportional to 289,585.13, 399,627.61 and 176,407.88
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Solution
The fourth proportional to 289,585.13, 399,627.61 and 176,407.88 is: 243,442.95
Step by Step Solution
- Step 1: Write the proportion equation
289,585.13 : 399,627.61 = 176,407.88 : x - Step 2: Convert to fraction form
289,585.13/399,627.61 = 176,407.88/x - Step 3: Cross multiply
289,585.13x = 399,627.61 × 176,407.88 - Step 4: Simplify right side
289,585.13x = 70,497,460,027.62 - Step 5: Solve for x
x = 70,497,460,027.62/289,585.13 - Step 6: Final answer
x = 243,442.95
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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.