Finding the Fourth Proportional to 319,615.44, 440,935.12 and 224,184.48
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Solution
The fourth proportional to 319,615.44, 440,935.12 and 224,184.48 is: 309,280.46
Step by Step Solution
- Step 1: Write the proportion equation
319,615.44 : 440,935.12 = 224,184.48 : x - Step 2: Convert to fraction form
319,615.44/440,935.12 = 224,184.48/x - Step 3: Cross multiply
319,615.44x = 440,935.12 × 224,184.48 - Step 4: Simplify right side
319,615.44x = 98,850,810,590.94 - Step 5: Solve for x
x = 98,850,810,590.94/319,615.44 - Step 6: Final answer
x = 309,280.46
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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.