Finding the Fourth Proportional to 313,749.07, 432,977.09 and 170,509.14
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Solution
The fourth proportional to 313,749.07, 432,977.09 and 170,509.14 is: 235,304.45
Step by Step Solution
- Step 1: Write the proportion equation
313,749.07 : 432,977.09 = 170,509.14 : x - Step 2: Convert to fraction form
313,749.07/432,977.09 = 170,509.14/x - Step 3: Cross multiply
313,749.07x = 432,977.09 × 170,509.14 - Step 4: Simplify right side
313,749.07x = 73,826,551,255.60 - Step 5: Solve for x
x = 73,826,551,255.60/313,749.07 - Step 6: Final answer
x = 235,304.45
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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.