Finding the Fourth Proportional to 239,134.48, 329,785.80 and 157,428.08
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Solution
The fourth proportional to 239,134.48, 329,785.80 and 157,428.08 is: 217,106.06
Step by Step Solution
- Step 1: Write the proportion equation
239,134.48 : 329,785.80 = 157,428.08 : x - Step 2: Convert to fraction form
239,134.48/329,785.80 = 157,428.08/x - Step 3: Cross multiply
239,134.48x = 329,785.80 × 157,428.08 - Step 4: Simplify right side
239,134.48x = 51,917,545,305.26 - Step 5: Solve for x
x = 51,917,545,305.26/239,134.48 - Step 6: Final answer
x = 217,106.06
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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.