Finding the Fourth Proportional to 399,242.34, 550,962.77 and 217,961.91
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Solution
The fourth proportional to 399,242.34, 550,962.77 and 217,961.91 is: 300,791.99
Step by Step Solution
- Step 1: Write the proportion equation
399,242.34 : 550,962.77 = 217,961.91 : x - Step 2: Convert to fraction form
399,242.34/550,962.77 = 217,961.91/x - Step 3: Cross multiply
399,242.34x = 550,962.77 × 217,961.91 - Step 4: Simplify right side
399,242.34x = 120,088,896,598.28 - Step 5: Solve for x
x = 120,088,896,598.28/399,242.34 - Step 6: Final answer
x = 300,791.99
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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.