Finding the Fourth Proportional to 150,698.24, 207,964.80 and 83,631.36
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Solution
The fourth proportional to 150,698.24, 207,964.80 and 83,631.36 is: 115,411.96
Step by Step Solution
- Step 1: Write the proportion equation
150,698.24 : 207,964.80 = 83,631.36 : x - Step 2: Convert to fraction form
150,698.24/207,964.80 = 83,631.36/x - Step 3: Cross multiply
150,698.24x = 207,964.80 × 83,631.36 - Step 4: Simplify right side
150,698.24x = 17,392,379,056.13 - Step 5: Solve for x
x = 17,392,379,056.13/150,698.24 - Step 6: Final answer
x = 115,411.96
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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.