Finding the Fourth Proportional to 258,691.84, 357,027.68 and 145,536.32
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Solution
The fourth proportional to 258,691.84, 357,027.68 and 145,536.32 is: 200,858.65
Step by Step Solution
- Step 1: Write the proportion equation
258,691.84 : 357,027.68 = 145,536.32 : x - Step 2: Convert to fraction form
258,691.84/357,027.68 = 145,536.32/x - Step 3: Cross multiply
258,691.84x = 357,027.68 × 145,536.32 - Step 4: Simplify right side
258,691.84x = 51,960,494,685.34 - Step 5: Solve for x
x = 51,960,494,685.34/258,691.84 - Step 6: Final answer
x = 200,858.65
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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.