Finding the Fourth Proportional to 283,122.58, 390,709.26 and 155,798.26
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Solution
The fourth proportional to 283,122.58, 390,709.26 and 155,798.26 is: 215,001.65
Step by Step Solution
- Step 1: Write the proportion equation
283,122.58 : 390,709.26 = 155,798.26 : x - Step 2: Convert to fraction form
283,122.58/390,709.26 = 155,798.26/x - Step 3: Cross multiply
283,122.58x = 390,709.26 × 155,798.26 - Step 4: Simplify right side
283,122.58x = 60,871,822,873.89 - Step 5: Solve for x
x = 60,871,822,873.89/283,122.58 - Step 6: Final answer
x = 215,001.65
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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.