Finding the Fourth Proportional to 316,289.94, 436,660.56 and 209,170.68
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Solution
The fourth proportional to 316,289.94, 436,660.56 and 209,170.68 is: 288,774.87
Step by Step Solution
- Step 1: Write the proportion equation
316,289.94 : 436,660.56 = 209,170.68 : x - Step 2: Convert to fraction form
316,289.94/436,660.56 = 209,170.68/x - Step 3: Cross multiply
316,289.94x = 436,660.56 × 209,170.68 - Step 4: Simplify right side
316,289.94x = 91,336,586,264.38 - Step 5: Solve for x
x = 91,336,586,264.38/316,289.94 - Step 6: Final answer
x = 288,774.87
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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.