Finding the Fourth Proportional to 323,935.80, 485,903.70 and 102,319.80
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Solution
The fourth proportional to 323,935.80, 485,903.70 and 102,319.80 is: 153,479.70
Step by Step Solution
- Step 1: Write the proportion equation
323,935.80 : 485,903.70 = 102,319.80 : x - Step 2: Convert to fraction form
323,935.80/485,903.70 = 102,319.80/x - Step 3: Cross multiply
323,935.80x = 485,903.70 × 102,319.80 - Step 4: Simplify right side
323,935.80x = 49,717,569,403.26 - Step 5: Solve for x
x = 49,717,569,403.26/323,935.80 - Step 6: Final answer
x = 153,479.70
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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.