Finding the Fourth Proportional to 283,367.45, 390,944.36 and 160,788.84
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Solution
The fourth proportional to 283,367.45, 390,944.36 and 160,788.84 is: 221,830.31
Step by Step Solution
- Step 1: Write the proportion equation
283,367.45 : 390,944.36 = 160,788.84 : x - Step 2: Convert to fraction form
283,367.45/390,944.36 = 160,788.84/x - Step 3: Cross multiply
283,367.45x = 390,944.36 × 160,788.84 - Step 4: Simplify right side
283,367.45x = 62,859,489,345.00 - Step 5: Solve for x
x = 62,859,489,345.00/283,367.45 - Step 6: Final answer
x = 221,830.31
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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.