Finding the Fourth Proportional to 283,231.26, 390,865.47 and 160,731.66
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Solution
The fourth proportional to 283,231.26, 390,865.47 and 160,731.66 is: 221,813.28
Step by Step Solution
- Step 1: Write the proportion equation
283,231.26 : 390,865.47 = 160,731.66 : x - Step 2: Convert to fraction form
283,231.26/390,865.47 = 160,731.66/x - Step 3: Cross multiply
283,231.26x = 390,865.47 × 160,731.66 - Step 4: Simplify right side
283,231.26x = 62,824,455,829.78 - Step 5: Solve for x
x = 62,824,455,829.78/283,231.26 - Step 6: Final answer
x = 221,813.28
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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.