Finding the Fourth Proportional to 283,053.68, 390,614.10 and 155,729.30
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Solution
The fourth proportional to 283,053.68, 390,614.10 and 155,729.30 is: 214,906.45
Step by Step Solution
- Step 1: Write the proportion equation
283,053.68 : 390,614.10 = 155,729.30 : x - Step 2: Convert to fraction form
283,053.68/390,614.10 = 155,729.30/x - Step 3: Cross multiply
283,053.68x = 390,614.10 × 155,729.30 - Step 4: Simplify right side
283,053.68x = 60,830,060,363.13 - Step 5: Solve for x
x = 60,830,060,363.13/283,053.68 - Step 6: Final answer
x = 214,906.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.