Finding the Fourth Proportional to 271,931.35, 407,023.58 and 145,254.84
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Solution
The fourth proportional to 271,931.35, 407,023.58 and 145,254.84 is: 217,415.70
Step by Step Solution
- Step 1: Write the proportion equation
271,931.35 : 407,023.58 = 145,254.84 : x - Step 2: Convert to fraction form
271,931.35/407,023.58 = 145,254.84/x - Step 3: Cross multiply
271,931.35x = 407,023.58 × 145,254.84 - Step 4: Simplify right side
271,931.35x = 59,122,144,989.13 - Step 5: Solve for x
x = 59,122,144,989.13/271,931.35 - Step 6: Final answer
x = 217,415.70
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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.