Finding the Fourth Proportional to 513,303.12, 770,086.08 and 213,684.12
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Solution
The fourth proportional to 513,303.12, 770,086.08 and 213,684.12 is: 320,580.88
Step by Step Solution
- Step 1: Write the proportion equation
513,303.12 : 770,086.08 = 213,684.12 : x - Step 2: Convert to fraction form
513,303.12/770,086.08 = 213,684.12/x - Step 3: Cross multiply
513,303.12x = 770,086.08 × 213,684.12 - Step 4: Simplify right side
513,303.12x = 164,555,166,329.05 - Step 5: Solve for x
x = 164,555,166,329.05/513,303.12 - Step 6: Final answer
x = 320,580.88
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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.