Finding the Fourth Proportional to 163,620.30, 245,430.45 and 135,972.30
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Solution
The fourth proportional to 163,620.30, 245,430.45 and 135,972.30 is: 203,958.45
Step by Step Solution
- Step 1: Write the proportion equation
163,620.30 : 245,430.45 = 135,972.30 : x - Step 2: Convert to fraction form
163,620.30/245,430.45 = 135,972.30/x - Step 3: Cross multiply
163,620.30x = 245,430.45 × 135,972.30 - Step 4: Simplify right side
163,620.30x = 33,371,742,776.54 - Step 5: Solve for x
x = 33,371,742,776.54/163,620.30 - Step 6: Final answer
x = 203,958.45
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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.