Finding the Fourth Proportional to 171,908.70, 257,863.05 and 108,923.10
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Solution
The fourth proportional to 171,908.70, 257,863.05 and 108,923.10 is: 163,384.65
Step by Step Solution
- Step 1: Write the proportion equation
171,908.70 : 257,863.05 = 108,923.10 : x - Step 2: Convert to fraction form
171,908.70/257,863.05 = 108,923.10/x - Step 3: Cross multiply
171,908.70x = 257,863.05 × 108,923.10 - Step 4: Simplify right side
171,908.70x = 28,087,242,781.46 - Step 5: Solve for x
x = 28,087,242,781.46/171,908.70 - Step 6: Final answer
x = 163,384.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.