Finding the Fourth Proportional to 287,156.76, 396,276.35 and 159,829.62
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Solution
The fourth proportional to 287,156.76, 396,276.35 and 159,829.62 is: 220,564.88
Step by Step Solution
- Step 1: Write the proportion equation
287,156.76 : 396,276.35 = 159,829.62 : x - Step 2: Convert to fraction form
287,156.76/396,276.35 = 159,829.62/x - Step 3: Cross multiply
287,156.76x = 396,276.35 × 159,829.62 - Step 4: Simplify right side
287,156.76x = 63,336,697,636.34 - Step 5: Solve for x
x = 63,336,697,636.34/287,156.76 - Step 6: Final answer
x = 220,564.88
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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.