Finding the Fourth Proportional to 312,782.94, 431,637.93 and 185,518.98
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Solution
The fourth proportional to 312,782.94, 431,637.93 and 185,518.98 is: 256,014.69
Step by Step Solution
- Step 1: Write the proportion equation
312,782.94 : 431,637.93 = 185,518.98 : x - Step 2: Convert to fraction form
312,782.94/431,637.93 = 185,518.98/x - Step 3: Cross multiply
312,782.94x = 431,637.93 × 185,518.98 - Step 4: Simplify right side
312,782.94x = 80,077,028,502.91 - Step 5: Solve for x
x = 80,077,028,502.91/312,782.94 - Step 6: Final answer
x = 256,014.69
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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.