Finding the Fourth Proportional to 313,884.60, 470,135.70 and 219,881.40
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Solution
The fourth proportional to 313,884.60, 470,135.70 and 219,881.40 is: 329,337.90
Step by Step Solution
- Step 1: Write the proportion equation
313,884.60 : 470,135.70 = 219,881.40 : x - Step 2: Convert to fraction form
313,884.60/470,135.70 = 219,881.40/x - Step 3: Cross multiply
313,884.60x = 470,135.70 × 219,881.40 - Step 4: Simplify right side
313,884.60x = 103,374,095,905.98 - Step 5: Solve for x
x = 103,374,095,905.98/313,884.60 - Step 6: Final answer
x = 329,337.90
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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.