Finding the Fourth Proportional to 339,670.44, 469,224.90 and 272,135.88
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Solution
The fourth proportional to 339,670.44, 469,224.90 and 272,135.88 is: 375,931.83
Step by Step Solution
- Step 1: Write the proportion equation
339,670.44 : 469,224.90 = 272,135.88 : x - Step 2: Convert to fraction form
339,670.44/469,224.90 = 272,135.88/x - Step 3: Cross multiply
339,670.44x = 469,224.90 × 272,135.88 - Step 4: Simplify right side
339,670.44x = 127,692,931,079.41 - Step 5: Solve for x
x = 127,692,931,079.41/339,670.44 - Step 6: Final answer
x = 375,931.83
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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.