Finding the Fourth Proportional to 283,110.19, 390,694.79 and 155,788.52
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Solution
The fourth proportional to 283,110.19, 390,694.79 and 155,788.52 is: 214,989.66
Step by Step Solution
- Step 1: Write the proportion equation
283,110.19 : 390,694.79 = 155,788.52 : x - Step 2: Convert to fraction form
283,110.19/390,694.79 = 155,788.52/x - Step 3: Cross multiply
283,110.19x = 390,694.79 × 155,788.52 - Step 4: Simplify right side
283,110.19x = 60,865,761,541.81 - Step 5: Solve for x
x = 60,865,761,541.81/283,110.19 - Step 6: Final answer
x = 214,989.66
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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.