Finding the Fourth Proportional to 239,964.06, 330,971.43 and 212,772.06
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Solution
The fourth proportional to 239,964.06, 330,971.43 and 212,772.06 is: 293,466.75
Step by Step Solution
- Step 1: Write the proportion equation
239,964.06 : 330,971.43 = 212,772.06 : x - Step 2: Convert to fraction form
239,964.06/330,971.43 = 212,772.06/x - Step 3: Cross multiply
239,964.06x = 330,971.43 × 212,772.06 - Step 4: Simplify right side
239,964.06x = 70,421,472,962.25 - Step 5: Solve for x
x = 70,421,472,962.25/239,964.06 - Step 6: Final answer
x = 293,466.75
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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.