Finding the Fourth Proportional to 309,188.10, 426,582.72 and 173,203.68
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Solution
The fourth proportional to 309,188.10, 426,582.72 and 173,203.68 is: 238,966.82
Step by Step Solution
- Step 1: Write the proportion equation
309,188.10 : 426,582.72 = 173,203.68 : x - Step 2: Convert to fraction form
309,188.10/426,582.72 = 173,203.68/x - Step 3: Cross multiply
309,188.10x = 426,582.72 × 173,203.68 - Step 4: Simplify right side
309,188.10x = 73,885,696,928.41 - Step 5: Solve for x
x = 73,885,696,928.41/309,188.10 - Step 6: Final answer
x = 238,966.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.