Finding the Fourth Proportional to 442,154.08, 609,739.15 and 280,728.88
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Solution
The fourth proportional to 442,154.08, 609,739.15 and 280,728.88 is: 387,130.63
Step by Step Solution
- Step 1: Write the proportion equation
442,154.08 : 609,739.15 = 280,728.88 : x - Step 2: Convert to fraction form
442,154.08/609,739.15 = 280,728.88/x - Step 3: Cross multiply
442,154.08x = 609,739.15 × 280,728.88 - Step 4: Simplify right side
442,154.08x = 171,171,385,622.96 - Step 5: Solve for x
x = 171,171,385,622.96/442,154.08 - Step 6: Final answer
x = 387,130.63
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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.