Finding the Fourth Proportional to 320,053.93, 479,975.36 and 106,763.06
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Solution
The fourth proportional to 320,053.93, 479,975.36 and 106,763.06 is: 160,109.39
Step by Step Solution
- Step 1: Write the proportion equation
320,053.93 : 479,975.36 = 106,763.06 : x - Step 2: Convert to fraction form
320,053.93/479,975.36 = 106,763.06/x - Step 3: Cross multiply
320,053.93x = 479,975.36 × 106,763.06 - Step 4: Simplify right side
320,053.93x = 51,243,638,824.32 - Step 5: Solve for x
x = 51,243,638,824.32/320,053.93 - Step 6: Final answer
x = 160,109.39
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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.