Finding the Fourth Proportional to 239,648.36, 330,753.51 and 142,864.09
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Solution
The fourth proportional to 239,648.36, 330,753.51 and 142,864.09 is: 197,175.56
Step by Step Solution
- Step 1: Write the proportion equation
239,648.36 : 330,753.51 = 142,864.09 : x - Step 2: Convert to fraction form
239,648.36/330,753.51 = 142,864.09/x - Step 3: Cross multiply
239,648.36x = 330,753.51 × 142,864.09 - Step 4: Simplify right side
239,648.36x = 47,252,798,393.57 - Step 5: Solve for x
x = 47,252,798,393.57/239,648.36 - Step 6: Final answer
x = 197,175.56
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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.