Finding the Fourth Proportional to 283,034.12, 390,584.02 and 155,709.80
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Solution
The fourth proportional to 283,034.12, 390,584.02 and 155,709.80 is: 214,877.84
Step by Step Solution
- Step 1: Write the proportion equation
283,034.12 : 390,584.02 = 155,709.80 : x - Step 2: Convert to fraction form
283,034.12/390,584.02 = 155,709.80/x - Step 3: Cross multiply
283,034.12x = 390,584.02 × 155,709.80 - Step 4: Simplify right side
283,034.12x = 60,817,759,637.40 - Step 5: Solve for x
x = 60,817,759,637.40/283,034.12 - Step 6: Final answer
x = 214,877.84
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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.