Finding the Fourth Proportional to 313,749.70, 432,977.96 and 170,509.77
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Solution
The fourth proportional to 313,749.70, 432,977.96 and 170,509.77 is: 235,305.32
Step by Step Solution
- Step 1: Write the proportion equation
313,749.70 : 432,977.96 = 170,509.77 : x - Step 2: Convert to fraction form
313,749.70/432,977.96 = 170,509.77/x - Step 3: Cross multiply
313,749.70x = 432,977.96 × 170,509.77 - Step 4: Simplify right side
313,749.70x = 73,826,972,374.67 - Step 5: Solve for x
x = 73,826,972,374.67/313,749.70 - Step 6: Final answer
x = 235,305.32
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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.