Finding the Fourth Proportional to 323,817.80, 485,726.70 and 102,201.80
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Solution
The fourth proportional to 323,817.80, 485,726.70 and 102,201.80 is: 153,302.70
Step by Step Solution
- Step 1: Write the proportion equation
323,817.80 : 485,726.70 = 102,201.80 : x - Step 2: Convert to fraction form
323,817.80/485,726.70 = 102,201.80/x - Step 3: Cross multiply
323,817.80x = 485,726.70 × 102,201.80 - Step 4: Simplify right side
323,817.80x = 49,642,143,048.06 - Step 5: Solve for x
x = 49,642,143,048.06/323,817.80 - Step 6: Final answer
x = 153,302.70
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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.