Finding the Fourth Proportional to 319,270.20, 478,905.30 and 283,327.80
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Solution
The fourth proportional to 319,270.20, 478,905.30 and 283,327.80 is: 424,991.70
Step by Step Solution
- Step 1: Write the proportion equation
319,270.20 : 478,905.30 = 283,327.80 : x - Step 2: Convert to fraction form
319,270.20/478,905.30 = 283,327.80/x - Step 3: Cross multiply
319,270.20x = 478,905.30 × 283,327.80 - Step 4: Simplify right side
319,270.20x = 135,687,185,057.34 - Step 5: Solve for x
x = 135,687,185,057.34/319,270.20 - Step 6: Final answer
x = 424,991.70
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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.