Finding the Fourth Proportional to 292,832.76, 438,947.46 and 115,267.80
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Solution
The fourth proportional to 292,832.76, 438,947.46 and 115,267.80 is: 172,782.95
Step by Step Solution
- Step 1: Write the proportion equation
292,832.76 : 438,947.46 = 115,267.80 : x - Step 2: Convert to fraction form
292,832.76/438,947.46 = 115,267.80/x - Step 3: Cross multiply
292,832.76x = 438,947.46 × 115,267.80 - Step 4: Simplify right side
292,832.76x = 50,596,508,029.79 - Step 5: Solve for x
x = 50,596,508,029.79/292,832.76 - Step 6: Final answer
x = 172,782.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.