Finding the Fourth Proportional to 283,051.70, 390,612.05 and 155,735.22
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Solution
The fourth proportional to 283,051.70, 390,612.05 and 155,735.22 is: 214,914.99
Step by Step Solution
- Step 1: Write the proportion equation
283,051.70 : 390,612.05 = 155,735.22 : x - Step 2: Convert to fraction form
283,051.70/390,612.05 = 155,735.22/x - Step 3: Cross multiply
283,051.70x = 390,612.05 × 155,735.22 - Step 4: Simplify right side
283,051.70x = 60,832,053,541.40 - Step 5: Solve for x
x = 60,832,053,541.40/283,051.70 - Step 6: Final answer
x = 214,914.99
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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.