Finding the Fourth Proportional to 319,440.60, 440,369.76 and 251,340.12
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Solution
The fourth proportional to 319,440.60, 440,369.76 and 251,340.12 is: 346,488.79
Step by Step Solution
- Step 1: Write the proportion equation
319,440.60 : 440,369.76 = 251,340.12 : x - Step 2: Convert to fraction form
319,440.60/440,369.76 = 251,340.12/x - Step 3: Cross multiply
319,440.60x = 440,369.76 × 251,340.12 - Step 4: Simplify right side
319,440.60x = 110,682,588,322.77 - Step 5: Solve for x
x = 110,682,588,322.77/319,440.60 - Step 6: Final answer
x = 346,488.79
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1.5x scale
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.