Finding the Fourth Proportional to 283,053.53, 390,616.97 and 153,992.73
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Solution
The fourth proportional to 283,053.53, 390,616.97 and 153,992.73 is: 212,511.65
Step by Step Solution
- Step 1: Write the proportion equation
283,053.53 : 390,616.97 = 153,992.73 : x - Step 2: Convert to fraction form
283,053.53/390,616.97 = 153,992.73/x - Step 3: Cross multiply
283,053.53x = 390,616.97 × 153,992.73 - Step 4: Simplify right side
283,053.53x = 60,152,174,289.48 - Step 5: Solve for x
x = 60,152,174,289.48/283,053.53 - Step 6: Final answer
x = 212,511.65
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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.