Finding the Fourth Proportional to 442,155.14, 609,740.62 and 280,729.94
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Solution
The fourth proportional to 442,155.14, 609,740.62 and 280,729.94 is: 387,132.09
Step by Step Solution
- Step 1: Write the proportion equation
442,155.14 : 609,740.62 = 280,729.94 : x - Step 2: Convert to fraction form
442,155.14/609,740.62 = 280,729.94/x - Step 3: Cross multiply
442,155.14x = 609,740.62 × 280,729.94 - Step 4: Simplify right side
442,155.14x = 171,172,443,917.64 - Step 5: Solve for x
x = 171,172,443,917.64/442,155.14 - Step 6: Final answer
x = 387,132.09
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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.