Finding the Fourth Proportional to 323,975.19, 485,929.97 and 87,341.79
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Solution
The fourth proportional to 323,975.19, 485,929.97 and 87,341.79 is: 131,003.83
Step by Step Solution
- Step 1: Write the proportion equation
323,975.19 : 485,929.97 = 87,341.79 : x - Step 2: Convert to fraction form
323,975.19/485,929.97 = 87,341.79/x - Step 3: Cross multiply
323,975.19x = 485,929.97 × 87,341.79 - Step 4: Simplify right side
323,975.19x = 42,441,990,746.44 - Step 5: Solve for x
x = 42,441,990,746.44/323,975.19 - Step 6: Final answer
x = 131,003.83
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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.