Finding the Fourth Proportional to 257,283.36, 385,962.36 and 79,804.62
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Solution
The fourth proportional to 257,283.36, 385,962.36 and 79,804.62 is: 119,718.51
Step by Step Solution
- Step 1: Write the proportion equation
257,283.36 : 385,962.36 = 79,804.62 : x - Step 2: Convert to fraction form
257,283.36/385,962.36 = 79,804.62/x - Step 3: Cross multiply
257,283.36x = 385,962.36 × 79,804.62 - Step 4: Simplify right side
257,283.36x = 30,801,579,474.10 - Step 5: Solve for x
x = 30,801,579,474.10/257,283.36 - Step 6: Final answer
x = 119,718.51
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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.