Finding the Fourth Proportional to 664,373.60, 996,430.80 and 214,985.60
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Solution
The fourth proportional to 664,373.60, 996,430.80 and 214,985.60 is: 322,436.46
Step by Step Solution
- Step 1: Write the proportion equation
664,373.60 : 996,430.80 = 214,985.60 : x - Step 2: Convert to fraction form
664,373.60/996,430.80 = 214,985.60/x - Step 3: Cross multiply
664,373.60x = 996,430.80 × 214,985.60 - Step 4: Simplify right side
664,373.60x = 214,218,273,396.48 - Step 5: Solve for x
x = 214,218,273,396.48/664,373.60 - Step 6: Final answer
x = 322,436.46
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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.