Finding the Fourth Proportional to 409,558.80, 614,204.47 and 135,931.49
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Solution
The fourth proportional to 409,558.80, 614,204.47 and 135,931.49 is: 203,852.85
Step by Step Solution
- Step 1: Write the proportion equation
409,558.80 : 614,204.47 = 135,931.49 : x - Step 2: Convert to fraction form
409,558.80/614,204.47 = 135,931.49/x - Step 3: Cross multiply
409,558.80x = 614,204.47 × 135,931.49 - Step 4: Simplify right side
409,558.80x = 83,489,728,771.76 - Step 5: Solve for x
x = 83,489,728,771.76/409,558.80 - Step 6: Final answer
x = 203,852.85
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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.