Finding the Fourth Proportional to 430,859.20, 646,288.80 and 244,235.20
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Solution
The fourth proportional to 430,859.20, 646,288.80 and 244,235.20 is: 366,352.80
Step by Step Solution
- Step 1: Write the proportion equation
430,859.20 : 646,288.80 = 244,235.20 : x - Step 2: Convert to fraction form
430,859.20/646,288.80 = 244,235.20/x - Step 3: Cross multiply
430,859.20x = 646,288.80 × 244,235.20 - Step 4: Simplify right side
430,859.20x = 157,846,474,325.76 - Step 5: Solve for x
x = 157,846,474,325.76/430,859.20 - Step 6: Final answer
x = 366,352.80
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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.