Finding the Fourth Proportional to 283,036.94, 390,590.97 and 155,709.80
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Solution
The fourth proportional to 283,036.94, 390,590.97 and 155,709.80 is: 214,879.52
Step by Step Solution
- Step 1: Write the proportion equation
283,036.94 : 390,590.97 = 155,709.80 : x - Step 2: Convert to fraction form
283,036.94/390,590.97 = 155,709.80/x - Step 3: Cross multiply
283,036.94x = 390,590.97 × 155,709.80 - Step 4: Simplify right side
283,036.94x = 60,818,841,820.51 - Step 5: Solve for x
x = 60,818,841,820.51/283,036.94 - Step 6: Final answer
x = 214,879.52
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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.