Finding the Fourth Proportional to 163,646.20, 245,123.70 and 135,998.20
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Solution
The fourth proportional to 163,646.20, 245,123.70 and 135,998.20 is: 203,710.09
Step by Step Solution
- Step 1: Write the proportion equation
163,646.20 : 245,123.70 = 135,998.20 : x - Step 2: Convert to fraction form
163,646.20/245,123.70 = 135,998.20/x - Step 3: Cross multiply
163,646.20x = 245,123.70 × 135,998.20 - Step 4: Simplify right side
163,646.20x = 33,336,381,977.34 - Step 5: Solve for x
x = 33,336,381,977.34/163,646.20 - Step 6: Final answer
x = 203,710.09
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1.5x scale
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.