Finding the Fourth Proportional to 306,908.36, 423,386.85 and 238,456.88
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Solution
The fourth proportional to 306,908.36, 423,386.85 and 238,456.88 is: 328,956.52
Step by Step Solution
- Step 1: Write the proportion equation
306,908.36 : 423,386.85 = 238,456.88 : x - Step 2: Convert to fraction form
306,908.36/423,386.85 = 238,456.88/x - Step 3: Cross multiply
306,908.36x = 423,386.85 × 238,456.88 - Step 4: Simplify right side
306,908.36x = 100,959,507,284.03 - Step 5: Solve for x
x = 100,959,507,284.03/306,908.36 - Step 6: Final answer
x = 328,956.52
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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.