Finding the Fourth Proportional to 368,768.45, 553,195.51 and 128,808.09
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Solution
The fourth proportional to 368,768.45, 553,195.51 and 128,808.09 is: 193,227.09
Step by Step Solution
- Step 1: Write the proportion equation
368,768.45 : 553,195.51 = 128,808.09 : x - Step 2: Convert to fraction form
368,768.45/553,195.51 = 128,808.09/x - Step 3: Cross multiply
368,768.45x = 553,195.51 × 128,808.09 - Step 4: Simplify right side
368,768.45x = 71,256,056,717.66 - Step 5: Solve for x
x = 71,256,056,717.66/368,768.45 - Step 6: Final answer
x = 193,227.09
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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.