Finding the Fourth Proportional to 323,517.60, 485,276.40 and 297,929.70
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Solution
The fourth proportional to 323,517.60, 485,276.40 and 297,929.70 is: 446,894.55
Step by Step Solution
- Step 1: Write the proportion equation
323,517.60 : 485,276.40 = 297,929.70 : x - Step 2: Convert to fraction form
323,517.60/485,276.40 = 297,929.70/x - Step 3: Cross multiply
323,517.60x = 485,276.40 × 297,929.70 - Step 4: Simplify right side
323,517.60x = 144,578,252,269.08 - Step 5: Solve for x
x = 144,578,252,269.08/323,517.60 - Step 6: Final answer
x = 446,894.55
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1.5x scale
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.