Finding the Fourth Proportional to 287,226.84, 396,420.36 and 219,115.20
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Solution
The fourth proportional to 287,226.84, 396,420.36 and 219,115.20 is: 302,415.08
Step by Step Solution
- Step 1: Write the proportion equation
287,226.84 : 396,420.36 = 219,115.20 : x - Step 2: Convert to fraction form
287,226.84/396,420.36 = 219,115.20/x - Step 3: Cross multiply
287,226.84x = 396,420.36 × 219,115.20 - Step 4: Simplify right side
287,226.84x = 86,861,726,465.47 - Step 5: Solve for x
x = 86,861,726,465.47/287,226.84 - Step 6: Final answer
x = 302,415.08
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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.