Finding the Fourth Proportional to 316,936.52, 475,397.84 and 77,051.68
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Solution
The fourth proportional to 316,936.52, 475,397.84 and 77,051.68 is: 115,575.84
Step by Step Solution
- Step 1: Write the proportion equation
316,936.52 : 475,397.84 = 77,051.68 : x - Step 2: Convert to fraction form
316,936.52/475,397.84 = 77,051.68/x - Step 3: Cross multiply
316,936.52x = 475,397.84 × 77,051.68 - Step 4: Simplify right side
316,936.52x = 36,630,203,699.54 - Step 5: Solve for x
x = 36,630,203,699.54/316,936.52 - Step 6: Final answer
x = 115,575.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.