Finding the Fourth Proportional to 319,515.08, 440,923.42 and 176,275.09
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Solution
The fourth proportional to 319,515.08, 440,923.42 and 176,275.09 is: 243,255.54
Step by Step Solution
- Step 1: Write the proportion equation
319,515.08 : 440,923.42 = 176,275.09 : x - Step 2: Convert to fraction form
319,515.08/440,923.42 = 176,275.09/x - Step 3: Cross multiply
319,515.08x = 440,923.42 × 176,275.09 - Step 4: Simplify right side
319,515.08x = 77,723,814,330.69 - Step 5: Solve for x
x = 77,723,814,330.69/319,515.08 - Step 6: Final answer
x = 243,255.54
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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.