Finding the Fourth Proportional to 239,301.78, 330,232.18 and 130,407.06
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Solution
The fourth proportional to 239,301.78, 330,232.18 and 130,407.06 is: 179,959.41
Step by Step Solution
- Step 1: Write the proportion equation
239,301.78 : 330,232.18 = 130,407.06 : x - Step 2: Convert to fraction form
239,301.78/330,232.18 = 130,407.06/x - Step 3: Cross multiply
239,301.78x = 330,232.18 × 130,407.06 - Step 4: Simplify right side
239,301.78x = 43,064,607,711.19 - Step 5: Solve for x
x = 43,064,607,711.19/239,301.78 - Step 6: Final answer
x = 179,959.41
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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.