Finding the Fourth Proportional to 606.14, 909.20 and 259.70
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Solution
The fourth proportional to 606.14, 909.20 and 259.70 is: 389.55
Step by Step Solution
- Step 1: Write the proportion equation
606.14 : 909.20 = 259.70 : x - Step 2: Convert to fraction form
606.14/909.20 = 259.70/x - Step 3: Cross multiply
606.14x = 909.20 × 259.70 - Step 4: Simplify right side
606.14x = 236,119.24 - Step 5: Solve for x
x = 236,119.24/606.14 - Step 6: Final answer
x = 389.55
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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.